Changes to allow indexes to be recommended for queries on SQL views.
FossilOrigin-Name: 0884ff1da2e27b146c764b73cf299a1f2cfe213c4a79bde34dec02d1fc946e70
This commit is contained in:
dan
parent
53761f4d52
commit
d8ac297233
14
manifest
14
manifest
@ -1,5 +1,5 @@
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C Add\ssome\ssupport\sfor\sOR\sterms\sto\ssqlite3_whereinfo_hook().
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D 2017-04-04T17:50:31.913
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C Changes\sto\sallow\sindexes\sto\sbe\srecommended\sfor\squeries\son\sSQL\sviews.
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D 2017-04-06T18:44:18.391
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F Makefile.in 1cc758ce3374a32425e4d130c2fe7b026b20de5b8843243de75f087c0a2661fb
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F Makefile.linux-gcc 7bc79876b875010e8c8f9502eb935ca92aa3c434
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F Makefile.msc a4c0613a18663bda56d8cf76079ab6590a7c3602e54befb4bbdef76bcaa38b6a
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@ -403,7 +403,7 @@ F src/resolve.c 3e518b962d932a997fae373366880fc028c75706
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F src/rowset.c 7b7e7e479212e65b723bf40128c7b36dc5afdfac
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F src/select.c 2496d0cc6368dabe7ad2e4c7f5ed3ad9aa3b4d11cd90f33fa1d1ef72493f43aa
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F src/shell.c e524688c2544167f835ba43e24309f8707ca60c8ab6eb5c263a12c8618a233b8
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F src/shell_indexes.c d40ea0a81112df7bdccd7232238bee0bbb39699085ea78cc08fd863bf052a63b
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F src/shell_indexes.c 1f5ab036ec189411aeea27e6e74ab0009d831764d5d8517455dcb6b6a734beb7
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F src/sqlite.h.in ae5c9cbf2e77492c319fca08769575d9695e64718a16d32324944d24e291bcf7
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F src/sqlite3.rc 5121c9e10c3964d5755191c80dd1180c122fc3a8
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F src/sqlite3ext.h 58fd0676d3111d02e62e5a35992a7d3da5d3f88753acc174f2d37b774fbbdd28
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@ -1120,7 +1120,7 @@ F test/shell2.test e242a9912f44f4c23c3d1d802a83e934e84c853b
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F test/shell3.test 9b95ba643eaa228376f06a898fb410ee9b6e57c1
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F test/shell4.test 89ad573879a745974ff2df20ff97c5d6ffffbd5d
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F test/shell5.test 50a732c1c2158b1cd62cf53975ce1ea7ce6b9dc9
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F test/shell6.test 081067c1afcb38da50134ffd5ccc0a59ede14f41959486f733ffbba689c0ccfa
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F test/shell6.test f37998b26dfde19beaaf06a4cb60c476f66a7b54affff3870a2a011402c13efc
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F test/shell7.test 07751911b294698e0c5df67bcbd29e7d2f0f2907
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F test/shortread1.test bb591ef20f0fd9ed26d0d12e80eee6d7ac8897a3
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F test/show_speedtest1_rtree.tcl 32e6c5f073d7426148a6936a0408f4b5b169aba5
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@ -1571,7 +1571,7 @@ F vsixtest/vsixtest.tcl 6a9a6ab600c25a91a7acc6293828957a386a8a93
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F vsixtest/vsixtest.vcxproj.data 2ed517e100c66dc455b492e1a33350c1b20fbcdc
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F vsixtest/vsixtest.vcxproj.filters 37e51ffedcdb064aad6ff33b6148725226cd608e
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F vsixtest/vsixtest_TemporaryKey.pfx e5b1b036facdb453873e7084e1cae9102ccc67a0
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P a54aef35da11f7508a8888a159372036a362fc52afa1df752dc835db334c4330
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R 51e547bc1c25ea79dd375d8f020224f3
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P 5cd070000da1d9e399090677b4db75dc5639c33211385d6eb84f14a4d0b617cd
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R aa13547c61fd31f43629472eaf9b4008
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U dan
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Z fe378068686ea107c39185021a17b4ae
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Z 2f3b5e2a515dd18e4123d763066c9a33
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@ -1 +1 @@
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5cd070000da1d9e399090677b4db75dc5639c33211385d6eb84f14a4d0b617cd
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0884ff1da2e27b146c764b73cf299a1f2cfe213c4a79bde34dec02d1fc946e70
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@ -43,44 +43,18 @@ struct IdxConstraint {
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/*
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** A WHERE clause. Made up of IdxConstraint objects. Example WHERE clause:
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**
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** a=? AND b=? AND ((c=? AND d=?) OR e=?) AND (f=? OR g=?) AND h>?
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** a=? AND b=? AND c=? AND d=? AND e>? AND f<?
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**
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** The above is decomposed into 5 AND connected clauses. The first two are
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** The above is decomposed into 6 AND connected clauses. The first four are
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** added to the IdxWhere.pEq linked list, the following two into
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** IdxWhere.pOr and the last into IdxWhere.pRange.
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** IdxWhere.pRange.
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**
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** IdxWhere.pEq and IdxWhere.pRange are simple linked lists of IdxConstraint
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** objects linked by the IdxConstraint.pNext field.
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**
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** The list headed at IdxWhere.pOr and linked by IdxWhere.pNextOr contains
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** all "OR" terms that belong to the current WHERE clause. In the example
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** above, there are two OR terms:
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**
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** ((c=? AND d=?) OR e=?)
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** (f=? OR g=?)
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**
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** Within an OR term, the OR connected sub-expressions are termed siblings.
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** These are connected into a linked list by the pSibling pointers. Each OR
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** term above consists of two siblings.
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**
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** pOr -> (c=? AND d=?) -> pNextOr -> (f=?)
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** | |
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** pSibling pSibling
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** | |
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** V V
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** (e=?) (g=?)
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**
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** IdxWhere.pParent is only used while constructing a tree of IdxWhere
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** structures. It is NULL for the root IdxWhere. For all others, the parent
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** WHERE clause.
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*/
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struct IdxWhere {
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IdxConstraint *pEq; /* List of == constraints */
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IdxConstraint *pRange; /* List of < constraints */
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IdxWhere *pOr; /* List of OR constraints */
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IdxWhere *pNextOr; /* Next in OR constraints of same IdxWhere */
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IdxWhere *pSibling; /* Next branch in single OR constraint */
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IdxWhere *pParent; /* Parent object (or NULL) */
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};
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/*
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@ -246,40 +220,6 @@ static void idxDatabaseError(
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*pzErrmsg = sqlite3_mprintf("%s", sqlite3_errmsg(db));
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}
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static char *idxQueryToList(
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sqlite3 *db,
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const char *zBind,
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int *pRc,
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char **pzErrmsg,
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const char *zSql
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){
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char *zRet = 0;
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if( *pRc==SQLITE_OK ){
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sqlite3_stmt *pStmt = 0;
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int rc = sqlite3_prepare_v2(db, zSql, -1, &pStmt, 0);
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if( rc==SQLITE_OK ){
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sqlite3_bind_text(pStmt, 1, zBind, -1, SQLITE_TRANSIENT);
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while( rc==SQLITE_OK && sqlite3_step(pStmt)==SQLITE_ROW ){
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const char *z = (const char*)sqlite3_column_text(pStmt, 0);
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zRet = sqlite3_mprintf("%z%s%Q", zRet, zRet?", ":"", z);
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if( zRet==0 ){
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rc = SQLITE_NOMEM;
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}
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}
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rc = sqlite3_finalize(pStmt);
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}
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if( rc ){
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idxDatabaseError(db, pzErrmsg);
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sqlite3_free(zRet);
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zRet = 0;
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}
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*pRc = rc;
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}
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return zRet;
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}
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static int idxPrepareStmt(
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sqlite3 *db, /* Database handle to compile against */
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sqlite3_stmt **ppStmt, /* OUT: Compiled SQL statement */
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@ -331,7 +271,7 @@ static int idxGetTableInfo(
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rc = idxPrintfPrepareStmt(db, &p1, pzErrmsg, "PRAGMA table_info=%Q", zTbl);
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while( rc==SQLITE_OK && SQLITE_ROW==sqlite3_step(p1) ){
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const char *zCol = sqlite3_column_text(p1, 1);
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const char *zCol = (const char*)sqlite3_column_text(p1, 1);
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nByte += 1 + strlen(zCol);
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rc = sqlite3_table_column_metadata(
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db, "main", zTbl, zCol, 0, &zCol, 0, 0, 0
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@ -354,7 +294,7 @@ static int idxGetTableInfo(
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nCol = 0;
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while( rc==SQLITE_OK && SQLITE_ROW==sqlite3_step(p1) ){
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const char *zCol = sqlite3_column_text(p1, 1);
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const char *zCol = (const char*)sqlite3_column_text(p1, 1);
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int nCopy = strlen(zCol) + 1;
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pNew->aCol[nCol].zName = pCsr;
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pNew->aCol[nCol].iPk = sqlite3_column_int(p1, 5);
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@ -392,38 +332,24 @@ static int idxCreateTables(
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char **pzErrmsg /* OUT: Error message */
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){
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int rc = SQLITE_OK;
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int rc2;
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IdxScan *pIter;
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sqlite3_stmt *pSql = 0;
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/* Copy the entire schema of database [db] into [dbm]. */
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rc = idxPrintfPrepareStmt(db, &pSql, pzErrmsg,
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"SELECT sql FROM sqlite_master WHERE name NOT LIKE 'sqlite_%%'"
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);
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while( rc==SQLITE_OK && SQLITE_ROW==sqlite3_step(pSql) ){
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const char *zSql = (const char*)sqlite3_column_text(pSql, 0);
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rc = sqlite3_exec(dbm, zSql, 0, 0, pzErrmsg);
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}
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rc2 = sqlite3_finalize(pSql);
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if( rc==SQLITE_OK ) rc = rc2;
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/* Load IdxTable objects */
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for(pIter=pScan; pIter && rc==SQLITE_OK; pIter=pIter->pNextScan){
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rc = idxGetTableInfo(db, pIter, pzErrmsg);
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/* Test if table has already been created. If so, jump to the next
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** iteration of the loop. */
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if( rc==SQLITE_OK ){
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sqlite3_stmt *pSql = 0;
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rc = idxPrintfPrepareStmt(dbm, &pSql, pzErrmsg,
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"SELECT 1 FROM sqlite_master WHERE tbl_name = %Q", pIter->zTable
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);
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if( rc==SQLITE_OK ){
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int bSkip = 0;
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if( sqlite3_step(pSql)==SQLITE_ROW ) bSkip = 1;
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rc = sqlite3_finalize(pSql);
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if( bSkip ) continue;
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}
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}
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if( rc==SQLITE_OK ){
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int rc2;
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sqlite3_stmt *pSql = 0;
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rc = idxPrintfPrepareStmt(db, &pSql, pzErrmsg,
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"SELECT sql FROM sqlite_master WHERE tbl_name = %Q", pIter->zTable
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);
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while( rc==SQLITE_OK && SQLITE_ROW==sqlite3_step(pSql) ){
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const char *zSql = (const char*)sqlite3_column_text(pSql, 0);
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rc = sqlite3_exec(dbm, zSql, 0, 0, pzErrmsg);
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}
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rc2 = sqlite3_finalize(pSql);
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if( rc==SQLITE_OK ) rc = rc2;
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}
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}
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return rc;
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}
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@ -655,26 +581,6 @@ static int idxCreateFromWhere(
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IdxContext*, i64, IdxScan*, IdxWhere*, IdxConstraint*, IdxConstraint*
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);
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static int idxCreateForeachOr(
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IdxContext *pCtx,
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i64 mask, /* Consider only these constraints */
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IdxScan *pScan, /* Create indexes for this scan */
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IdxWhere *pWhere, /* Read constraints from here */
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IdxConstraint *pEq, /* == constraints for inclusion */
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IdxConstraint *pTail /* range/ORDER BY constraints for inclusion */
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){
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int rc = SQLITE_OK;
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IdxWhere *p1;
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IdxWhere *p2;
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for(p1=pWhere->pOr; p1 && rc==SQLITE_OK; p1=p1->pNextOr){
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rc = idxCreateFromWhere(pCtx, mask, pScan, p1, pEq, pTail);
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for(p2=p1->pSibling; p2 && rc==SQLITE_OK; p2=p2->pSibling){
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rc = idxCreateFromWhere(pCtx, mask, pScan, p2, pEq, pTail);
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}
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}
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return rc;
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}
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/*
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** Return true if list pList (linked by IdxConstraint.pLink) contains
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** a constraint compatible with *p. Otherwise return false.
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@ -695,7 +601,6 @@ static int idxCreateFromWhere(
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IdxConstraint *pEq, /* == constraints for inclusion */
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IdxConstraint *pTail /* range/ORDER BY constraints for inclusion */
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){
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sqlite3 *dbm = pCtx->dbm;
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IdxConstraint *p1 = pEq;
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IdxConstraint *pCon;
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int rc;
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@ -714,9 +619,6 @@ static int idxCreateFromWhere(
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/* Create an index using the == constraints collected above. And the
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** range constraint/ORDER BY terms passed in by the caller, if any. */
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rc = idxCreateFromCons(pCtx, pScan, p1, pTail);
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if( rc==SQLITE_OK ){
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rc = idxCreateForeachOr(pCtx, mask, pScan, pWhere, p1, pTail);
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}
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/* If no range/ORDER BY passed by the caller, create a version of the
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** index for each range constraint that matches the mask. */
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@ -728,9 +630,6 @@ static int idxCreateFromWhere(
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&& idxFindConstraint(pTail, pCon)==0
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){
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rc = idxCreateFromCons(pCtx, pScan, p1, pCon);
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if( rc==SQLITE_OK ){
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rc = idxCreateForeachOr(pCtx, mask, pScan, pWhere, p1, pCon);
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}
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}
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}
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}
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@ -749,7 +648,7 @@ static int idxCreateCandidates(IdxContext *pCtx){
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sqlite3_stmt *pDepmask; /* Foreach depmask */
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IdxScan *pIter;
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rc = idxPrepareStmt(pCtx->dbm, &pDepmask, pCtx->pzErrmsg,
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rc = idxPrepareStmt(dbm, &pDepmask, pCtx->pzErrmsg,
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"SELECT mask FROM depmask"
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);
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@ -774,7 +673,6 @@ static void idxScanFree(IdxScan *pScan){
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IdxScan *pNext;
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for(pIter=pScan; pIter; pIter=pNext){
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pNext = pIter->pNextScan;
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}
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}
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@ -841,11 +739,11 @@ int idxFindIndexes(
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if( rc==SQLITE_OK ) rc = rc2;
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if( rc==SQLITE_OK ){
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sqlite3_stmt *pLoop = 0;
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rc = idxPrepareStmt(dbm, &pLoop, pzErr, "SELECT name FROM aux.indexes");
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rc = idxPrepareStmt(dbm, &pLoop, pzErr,"SELECT name||';' FROM aux.indexes");
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if( rc==SQLITE_OK ){
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while( SQLITE_ROW==sqlite3_step(pLoop) ){
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bFound = 1;
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xOut(pOutCtx, sqlite3_column_text(pLoop, 0));
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xOut(pOutCtx, (const char*)sqlite3_column_text(pLoop, 0));
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}
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rc = sqlite3_finalize(pLoop);
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}
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@ -66,7 +66,7 @@ do_setup_rec_test 1.2 {
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} {
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SELECT * FROM t1 WHERE b>?;
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} {
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CREATE INDEX t1_idx_00000062 ON t1(b)
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CREATE INDEX t1_idx_00000062 ON t1(b);
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0|0|0|SEARCH TABLE t1 USING INDEX t1_idx_00000062 (b>?)
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}
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@ -75,7 +75,7 @@ do_setup_rec_test 1.3 {
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} {
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SELECT * FROM t1 WHERE b COLLATE nocase BETWEEN ? AND ?
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} {
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CREATE INDEX t1_idx_3e094c27 ON t1(b COLLATE NOCASE)
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CREATE INDEX t1_idx_3e094c27 ON t1(b COLLATE NOCASE);
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0|0|0|SEARCH TABLE t1 USING INDEX t1_idx_3e094c27 (b>? AND b<?)
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}
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@ -84,7 +84,7 @@ do_setup_rec_test 1.4 {
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} {
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SELECT a FROM t1 ORDER BY b;
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} {
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CREATE INDEX t1_idx_00000062 ON t1(b)
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CREATE INDEX t1_idx_00000062 ON t1(b);
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0|0|0|SCAN TABLE t1 USING INDEX t1_idx_00000062
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}
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@ -93,7 +93,7 @@ do_setup_rec_test 1.5 {
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} {
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SELECT a FROM t1 WHERE a=? ORDER BY b;
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} {
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CREATE INDEX t1_idx_000123a7 ON t1(a, b)
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CREATE INDEX t1_idx_000123a7 ON t1(a, b);
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0|0|0|SEARCH TABLE t1 USING COVERING INDEX t1_idx_000123a7 (a=?)
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}
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@ -102,7 +102,7 @@ do_setup_rec_test 1.6 {
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} {
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SELECT min(a) FROM t1
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} {
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CREATE INDEX t1_idx_00000061 ON t1(a)
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CREATE INDEX t1_idx_00000061 ON t1(a);
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0|0|0|SEARCH TABLE t1 USING COVERING INDEX t1_idx_00000061
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}
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@ -111,7 +111,7 @@ do_setup_rec_test 1.7 {
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} {
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SELECT * FROM t1 ORDER BY a, b, c;
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} {
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CREATE INDEX t1_idx_033e95fe ON t1(a, b, c)
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CREATE INDEX t1_idx_033e95fe ON t1(a, b, c);
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0|0|0|SCAN TABLE t1 USING COVERING INDEX t1_idx_033e95fe
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}
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@ -120,7 +120,7 @@ do_setup_rec_test 1.8 {
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} {
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SELECT * FROM t1 ORDER BY a ASC, b COLLATE nocase DESC, c ASC;
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} {
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CREATE INDEX t1_idx_5be6e222 ON t1(a, b COLLATE NOCASE DESC, c)
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CREATE INDEX t1_idx_5be6e222 ON t1(a, b COLLATE NOCASE DESC, c);
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0|0|0|SCAN TABLE t1 USING COVERING INDEX t1_idx_5be6e222
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}
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@ -129,7 +129,7 @@ do_setup_rec_test 1.9 {
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} {
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SELECT * FROM t1 WHERE a=?
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} {
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CREATE INDEX t1_idx_00000061 ON t1(a)
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CREATE INDEX t1_idx_00000061 ON t1(a);
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0|0|0|SEARCH TABLE t1 USING INDEX t1_idx_00000061 (a=?)
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}
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|
||||
@ -141,7 +141,7 @@ do_setup_rec_test 8.1 {
|
||||
} {
|
||||
SELECT * FROM "t t" WHERE a=?
|
||||
} {
|
||||
CREATE INDEX 't t_idx_00000061' ON 't t'(a)
|
||||
CREATE INDEX 't t_idx_00000061' ON 't t'(a);
|
||||
0|0|0|SEARCH TABLE t t USING INDEX t t_idx_00000061 (a=?)
|
||||
}
|
||||
|
||||
@ -150,7 +150,7 @@ do_setup_rec_test 8.2 {
|
||||
} {
|
||||
SELECT * FROM "t t" WHERE b BETWEEN ? AND ?
|
||||
} {
|
||||
CREATE INDEX 't t_idx_00000062' ON 't t'(b)
|
||||
CREATE INDEX 't t_idx_00000062' ON 't t'(b);
|
||||
0|0|0|SEARCH TABLE t t USING INDEX t t_idx_00000062 (b>? AND b<?)
|
||||
}
|
||||
|
||||
@ -161,7 +161,7 @@ do_setup_rec_test 9.1 {
|
||||
} {
|
||||
SELECT * FROM t3 WHERE "b b" = ?
|
||||
} {
|
||||
CREATE INDEX t3_idx_00050c52 ON t3('b b')
|
||||
CREATE INDEX t3_idx_00050c52 ON t3('b b');
|
||||
0|0|0|SEARCH TABLE t3 USING INDEX t3_idx_00050c52 (b b=?)
|
||||
}
|
||||
|
||||
@ -170,7 +170,7 @@ do_setup_rec_test 9.2 {
|
||||
} {
|
||||
SELECT * FROM t3 ORDER BY "b b"
|
||||
} {
|
||||
CREATE INDEX t3_idx_00050c52 ON t3('b b')
|
||||
CREATE INDEX t3_idx_00050c52 ON t3('b b');
|
||||
0|0|0|SCAN TABLE t3 USING INDEX t3_idx_00050c52
|
||||
}
|
||||
|
||||
@ -182,8 +182,8 @@ do_setup_rec_test 10.1 {
|
||||
} {
|
||||
SELECT * FROM t5, t6 WHERE a=? AND b=c AND c=?
|
||||
} {
|
||||
CREATE INDEX t5_idx_000123a7 ON t5(a, b)
|
||||
CREATE INDEX t6_idx_00000063 ON t6(c)
|
||||
CREATE INDEX t5_idx_000123a7 ON t5(a, b);
|
||||
CREATE INDEX t6_idx_00000063 ON t6(c);
|
||||
0|0|1|SEARCH TABLE t6 USING INDEX t6_idx_00000063 (c=?)
|
||||
0|1|0|SEARCH TABLE t5 USING COVERING INDEX t5_idx_000123a7 (a=? AND b=?)
|
||||
}
|
||||
@ -195,8 +195,8 @@ do_setup_rec_test 11.1 {
|
||||
} {
|
||||
SELECT * FROM t7 WHERE a=? OR b=?
|
||||
} {
|
||||
CREATE INDEX t7_idx_00000061 ON t7(a)
|
||||
CREATE INDEX t7_idx_00000062 ON t7(b)
|
||||
CREATE INDEX t7_idx_00000061 ON t7(a);
|
||||
CREATE INDEX t7_idx_00000062 ON t7(b);
|
||||
0|0|0|SEARCH TABLE t7 USING INDEX t7_idx_00000061 (a=?)
|
||||
0|0|0|SEARCH TABLE t7 USING INDEX t7_idx_00000062 (b=?)
|
||||
}
|
||||
|
||||
Loading…
Reference in New Issue
Block a user