Enhance the table_info pragma so that the pk column shows the order of the

columns in a multi-column primary key.

FossilOrigin-Name: 3076a89015071e9b40e728bd55160e3a6ed98820

manifest

@@ -1,5 +1,5 @@
-C More\stest\scases\sfor\sthe\sREGEXP\soperator.\s\sFix\sminor\sbugs\suncovered\sby\sthese\ntest\scases.
-D 2012-12-31T20:16:35.189
+C Enhance\sthe\stable_info\spragma\sso\sthat\sthe\spk\scolumn\sshows\sthe\sorder\sof\sthe\ncolumns\sin\sa\smulti-column\sprimary\skey.
+D 2013-01-01T13:55:31.529
 F Makefile.arm-wince-mingw32ce-gcc d6df77f1f48d690bd73162294bbba7f59507c72f
 F Makefile.in a48faa9e7dd7d556d84f5456eabe5825dd8a6282
 F Makefile.linux-gcc 91d710bdc4998cb015f39edf3cb314ec4f4d7e23
@@ -168,7 +168,7 @@ F src/parse.y 5d5e12772845805fdfeb889163516b84fbb9ae95
 F src/pcache.c f8043b433a57aba85384a531e3937a804432a346
 F src/pcache.h 1b5dcc3dc8103d03e625b177023ee67764fa6b7c
 F src/pcache1.c 9fd22671c270b35131ef480bbc00392b8b5f8ab9
-F src/pragma.c 1ff115f620d9496fe5018306b644ab9ef7e26a3c
+F src/pragma.c 8907c559d3127729d3bcedb1fe5c59fc196d3a17
 F src/prepare.c 931ad0d852a0df48f79adcba6ce79ca5f475625c
 F src/printf.c 4a9f882f1c1787a8b494a2987765acf9d97ac21f
 F src/random.c cd4a67b3953b88019f8cd4ccd81394a8ddfaba50
@@ -654,7 +654,7 @@ F test/pagesize.test 1dd51367e752e742f58e861e65ed7390603827a0
 F test/pcache.test 065aa286e722ab24f2e51792c1f093bf60656b16
 F test/pcache2.test a83efe2dec0d392f814bfc998def1d1833942025
 F test/permutations.test 360b92859c0af814b3fe10b68746936389606501
-F test/pragma.test a62f73293b0f0d79b0c87f8dd32d46fe53b0bd17
+F test/pragma.test 5ce333cae37d86cfe9b3add840906e375e2272b0
 F test/pragma2.test 3a55f82b954242c642f8342b17dffc8b47472947
 F test/printf.test ec9870c4dce8686a37818e0bf1aba6e6a1863552
 F test/progress.test 5b075c3c790c7b2a61419bc199db87aaf48b8301
@@ -1030,7 +1030,7 @@ F tool/vdbe-compress.tcl f12c884766bd14277f4fcedcae07078011717381
 F tool/warnings-clang.sh f6aa929dc20ef1f856af04a730772f59283631d4
 F tool/warnings.sh fbc018d67fd7395f440c28f33ef0f94420226381
 F tool/win/sqlite.vsix 97894c2790eda7b5bce3cc79cb2a8ec2fde9b3ac
-P 46c8c01b751c1ea7fc02cc35e3b5bb99dbe46c4b
-R 6e56302eb044cc0fb37d40997bea4520
+P a611c75061c8e821cb266fcb09759100d4a646b0
+R e68c4dd2b29a4a981e4da04205873c7d
 U drh
-Z d62b4f1d3e09d5165b99ff6799092c00
+Z 9a369736ae7dc5da841cecf2065e7d10

manifest.uuid

@@ -1 +1 @@
-a611c75061c8e821cb266fcb09759100d4a646b0
+3076a89015071e9b40e728bd55160e3a6ed98820

src/pragma.c

@@ -948,9 +948,11 @@ void sqlite3Pragma(
     if( sqlite3ReadSchema(pParse) ) goto pragma_out;
     pTab = sqlite3FindTable(db, zRight, zDb);
     if( pTab ){
-      int i;
+      int i, k;
       int nHidden = 0;
       Column *pCol;
+      Index *pPk;
+      for(pPk=pTab->pIndex; pPk && pPk->autoIndex!=2; pPk=pPk->pNext){}
       sqlite3VdbeSetNumCols(v, 6);
       pParse->nMem = 6;
       sqlite3VdbeSetColName(v, 0, COLNAME_NAME, "cid", SQLITE_STATIC);
@@ -975,8 +977,14 @@ void sqlite3Pragma(
         }else{
           sqlite3VdbeAddOp2(v, OP_Null, 0, 5);
         }
-        sqlite3VdbeAddOp2(v, OP_Integer,
-                            (pCol->colFlags&COLFLAG_PRIMKEY)!=0, 6);
+        if( (pCol->colFlags & COLFLAG_PRIMKEY)==0 ){
+          k = 0;
+        }else if( pPk==0 ){
+          k = 1;
+        }else{
+          for(k=1; ALWAYS(k<=pTab->nCol) && pPk->aiColumn[k-1]!=i; k++){}
+        }
+        sqlite3VdbeAddOp2(v, OP_Integer, k, 6);
         sqlite3VdbeAddOp2(v, OP_ResultRow, 1, 6);
       }
     }

test/pragma.test

@@ -534,12 +534,20 @@ do_test pragma-6.2.2 {
       b DEFAULT (5+3),
       c TEXT,
       d INTEGER DEFAULT NULL,
-      e TEXT DEFAULT ''
+      e TEXT DEFAULT '',
+      UNIQUE(b,c,d),
+      PRIMARY KEY(e,b,c)
     );
     PRAGMA table_info(t5);
   }
-} {0 a TEXT 0 CURRENT_TIMESTAMP 0 1 b {} 0 5+3 0 2 c TEXT 0 <<NULL>> 0 3 d INTEGER 0 NULL 0 4 e TEXT 0 '' 0}
+} {0 a TEXT 0 CURRENT_TIMESTAMP 0 1 b {} 0 5+3 2 2 c TEXT 0 <<NULL>> 3 3 d INTEGER 0 NULL 0 4 e TEXT 0 '' 1}
 db nullvalue {}
+do_test pragma-6.2.3 {
+  execsql {
+    CREATE TABLE t2_3(a,b INTEGER PRIMARY KEY,c);
+    pragma table_info(t2_3)
+  }
+} {0 a {} 0 {} 0 1 b INTEGER 0 {} 1 2 c {} 0 {} 0}
 ifcapable {foreignkey} {
   do_test pragma-6.3.1 {
     execsql {
@@ -1619,5 +1627,3 @@ do_test 22.4.3 {
 } {ok}
 
 finish_test
-
-