Allow expressions with subtypes to be read from indexes unless they are being used as direct or indirect parameters to SQLITE_SUBTYPE functions.

FossilOrigin-Name: aa440e78e9004c7ca3e03beaf264f54d0070ad7298a3c96ca097d8b35c872e5f
This commit is contained in:
dan 2024-10-05 18:10:02 +00:00
parent c857b9eb5d
commit d564bdb050
6 changed files with 49 additions and 27 deletions

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@ -1,5 +1,5 @@
C Experimental\schange\sto\sallow\sexpressions\swith\ssubtypes\sto\sbe\sread\sfrom\sindexes\sin\ssituations\swhere\sthey\sare\snot\sused\sas\sfunction\sparameters.
D 2024-10-05T17:37:19.432
C Allow\sexpressions\swith\ssubtypes\sto\sbe\sread\sfrom\sindexes\sunless\sthey\sare\sbeing\sused\sas\sdirect\sor\sindirect\sparameters\sto\sSQLITE_SUBTYPE\sfunctions.
D 2024-10-05T18:10:02.045
F .fossil-settings/empty-dirs dbb81e8fc0401ac46a1491ab34a7f2c7c0452f2f06b54ebb845d024ca8283ef1
F .fossil-settings/ignore-glob 35175cdfcf539b2318cb04a9901442804be81cd677d8b889fcc9149c21f239ea
F LICENSE.md df5091916dbb40e6e9686186587125e1b2ff51f022cc334e886c19a0e9982724
@ -719,7 +719,7 @@ F src/date.c 89ce1ff20512a7fa5070ba6e7dd5c171148ca7d580955795bf97c79c2456144a
F src/dbpage.c db1be8adaf1f839ad733c08baeac5c22aa912f7b535865c0c061382602081360
F src/dbstat.c 73362c0df0f40ad5523a6f5501224959d0976757b511299bf892313e79d14f5c
F src/delete.c 03a77ba20e54f0f42ebd8eddf15411ed6bdb06a2c472ac4b6b336521bf7cea42
F src/expr.c 9441dc9f9f4dd3a172270d3dbf476d709aa82ca9bab73a5f3bb878654afe4424
F src/expr.c 0aafe1b0d3893e9f568f30efa2e7b96a6e6bcc072e481ae68c5abe3f01d81367
F src/fault.c 460f3e55994363812d9d60844b2a6de88826e007
F src/fkey.c 928ed2517e8732113d2b9821aa37af639688d752f4ea9ac6e0e393d713eeb76f
F src/func.c df400a1d3f4625997d4dd8a81951c303e066277c29b861d37e03cd152d7858dd
@ -767,14 +767,14 @@ F src/pragma.h e690a356c18e98414d2e870ea791c1be1545a714ba623719deb63f7f226d8bb7
F src/prepare.c 3ba0ad907b7773ed642f66cea8a2c9c8edc18841aa1050b6218dbb3479e86225
F src/printf.c 6a87534ebfb9e5346011191b1f3a7ebc457f5938c7e4feeea478ecf53f6a41b2
F src/random.c 606b00941a1d7dd09c381d3279a058d771f406c5213c9932bbd93d5587be4b9c
F src/resolve.c 9750a281f7ba073b4e6da2be1a6c4071f5d841a7746c5fb3f70d6d793b6675ea
F src/resolve.c c8a5372b97b2a2e972a280676f06ddb5b74e885d3b1f5ce383f839907b57ef68
F src/rowset.c 8432130e6c344b3401a8874c3cb49fefe6873fec593294de077afea2dce5ec97
F src/select.c 4b14337a2742f0c0beeba490e9a05507e9b4b12184b9cd12773501d08d48e3fe
F src/shell.c.in 981efe98f98a983c1d0193d18528eb2d765207c0c82b67b610be60f17995a43e
F src/sqlite.h.in 1def838497ad53c81486649ce79821925d1ac20a9843af317a344d507efe116e
F src/sqlite3.rc 5121c9e10c3964d5755191c80dd1180c122fc3a8
F src/sqlite3ext.h 3f046c04ea3595d6bfda99b781926b17e672fd6d27da2ba6d8d8fc39981dcb54
F src/sqliteInt.h 40552bd22f4bc3330f2a73633d12f12863c5aa4e409af75f8ebfaeb794b11e4f
F src/sqliteInt.h ad02397dc4d22b77f9a331412d46e4c1e49459dd386fba8373fa148998e1e7d0
F src/sqliteLimit.h 6878ab64bdeb8c24a1d762d45635e34b96da21132179023338c93f820eee6728
F src/status.c cb11f8589a6912af2da3bb1ec509a94dd8ef27df4d4c1a97e0bcf2309ece972b
F src/table.c 0f141b58a16de7e2fbe81c308379e7279f4c6b50eb08efeec5892794a0ba30d1
@ -1324,7 +1324,7 @@ F test/indexA.test 11d84f6995e6e5b9d8315953fb1b6d29772ee7c7803ee9112715e7e4dd3e4
F test/indexedby.test f21eca4f7a6ffe14c8500a7ad6cd53166666c99e5ccd311842a28bc94a195fe0
F test/indexexpr1.test 24fa85a12da384dd1d56f7b24e593c51a8a54b4c5e2e8bbb9e5fdf1099427faf
F test/indexexpr2.test 1c382e81ef996d8ae8b834a74f2a9013dddf59214c32201d7c8a656d739f999a
F test/indexexpr3.test 7689d11a60dca09879f490db5fd26b9171a57e31d97282d9963e944b1536f676
F test/indexexpr3.test 9d893bf440937ebcc1e59c7c9c1505c40c918346a3ddde76a69078f3c733c45d
F test/indexfault.test 98d78a8ff1f5335628b62f886a1cb7c7dac1ef6d48fa39c51ec871c87dce9811
F test/init.test 15c823093fdabbf7b531fe22cf037134d09587a7
F test/insert.test 4e3f0de67aac3c5be1f4aaedbcea11638f1b5cdc9a3115be14d19aa9db7623c6
@ -2216,11 +2216,8 @@ F vsixtest/vsixtest.tcl 6195aba1f12a5e10efc2b8c0009532167be5e301abe5b31385638080
F vsixtest/vsixtest.vcxproj.data 2ed517e100c66dc455b492e1a33350c1b20fbcdc
F vsixtest/vsixtest.vcxproj.filters 37e51ffedcdb064aad6ff33b6148725226cd608e
F vsixtest/vsixtest_TemporaryKey.pfx e5b1b036facdb453873e7084e1cae9102ccc67a0
P 2f7eab381e16760952d1c90a9119d2a217933f0136442d8f6eeb6d95e366ca4f
R 05b36287276c4340f7e35170606a310b
T *branch * indexed-subtype-expr
T *sym-indexed-subtype-expr *
T -sym-trunk *
P ac63f98ad85a4dd1e49cc64b41f0ca0044153972c15d71c669f4bc3ec590e268
R d7f4847c66a2bc32b5fcb862258f0d6b
U dan
Z 943b26137ccac8e38cc1774f405e6dc0
Z f387b8ba9011d1385bb9a2c14c76e4d1
# Remove this line to create a well-formed Fossil manifest.

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@ -1 +1 @@
ac63f98ad85a4dd1e49cc64b41f0ca0044153972c15d71c669f4bc3ec590e268
aa440e78e9004c7ca3e03beaf264f54d0070ad7298a3c96ca097d8b35c872e5f

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@ -1164,7 +1164,6 @@ Expr *sqlite3ExprFunction(
){
Expr *pNew;
sqlite3 *db = pParse->db;
int ii;
assert( pToken );
pNew = sqlite3ExprAlloc(db, TK_FUNCTION, pToken, 1);
if( pNew==0 ){
@ -1179,11 +1178,6 @@ Expr *sqlite3ExprFunction(
){
sqlite3ErrorMsg(pParse, "too many arguments on function %T", pToken);
}
if( pList && pParse->nErr==0 ){
for(ii=0; ii<pList->nExpr; ii++){
ExprSetProperty(pList->a[ii].pExpr, EP_FuncArg);
}
}
pNew->x.pList = pList;
ExprSetProperty(pNew, EP_HasFunc);
assert( ExprUseXList(pNew) );
@ -4650,7 +4644,7 @@ static SQLITE_NOINLINE int sqlite3IndexedExprLookup(
** value taken from an expression index if they are themselves an
** argument to another scalar function or aggregate.
** https://sqlite.org/forum/forumpost/68d284c86b082c3e */
if( ExprHasProperty(pExpr, EP_FuncArg)
if( ExprHasProperty(pExpr, EP_SubtArg)
&& sqlite3ExprCanReturnSubtype(pParse, pExpr)
){
continue;

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@ -1183,6 +1183,24 @@ static int resolveExprStep(Walker *pWalker, Expr *pExpr){
}
}
#endif
/* If the function may call sqlite3_value_subtype(), then set the
** EP_SubtArg flag on all of its argument expressions. This prevents
** where.c from replacing the expression with a value read from an
** index on the same expression, which will not have the correct
** subtype. Also set the flag if the function expression itself is
** an EP_SubtArg expression. In this case subtypes are required as
** the function may return a value with a subtype back to its
** caller using sqlite3_result_value(). */
if( (pDef->funcFlags & SQLITE_SUBTYPE)
|| ExprHasProperty(pExpr, EP_SubtArg)
){
int ii;
for(ii=0; ii<n; ii++){
ExprSetProperty(pList->a[ii].pExpr, EP_SubtArg);
}
}
if( pDef->funcFlags & (SQLITE_FUNC_CONSTANT|SQLITE_FUNC_SLOCHNG) ){
/* For the purposes of the EP_ConstFunc flag, date and time
** functions and other functions that change slowly are considered

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@ -3104,7 +3104,7 @@ struct Expr {
#define EP_IsTrue 0x10000000 /* Always has boolean value of TRUE */
#define EP_IsFalse 0x20000000 /* Always has boolean value of FALSE */
#define EP_FromDDL 0x40000000 /* Originates from sqlite_schema */
#define EP_FuncArg 0x80000000 /* Is a function() argument */
#define EP_SubtArg 0x80000000 /* Is argument to SQLITE_SUBTYPE function */
/* The EP_Propagate mask is a set of properties that automatically propagate
** upwards into parent nodes.

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@ -28,15 +28,15 @@ do_execsql_test 1.0 {
}
proc do_hasfunction_test {tn sql res} {
set bFunction 0
set nFunction 0
db eval "EXPLAIN $sql" x {
if {$x(opcode)=="Function"} {
set bFunction 1
incr nFunction
}
}
do_execsql_test $tn "
SELECT $bFunction;
SELECT $nFunction;
$sql
" $res
}
@ -54,17 +54,30 @@ do_hasfunction_test 1.2 {
}
do_hasfunction_test 1.3 {
SELECT coalesce(json_extract(j, '$.x'), 0) FROM t1 WHERE a=2
SELECT coalesce(json_extract(j, '$.x'), 'five') FROM t1 WHERE a=2
} {
1 two
0 two
}
do_hasfunction_test 1.3 {
do_hasfunction_test 1.4 {
SELECT json_extract(j, '$.x') || '.two' FROM t1 WHERE a=2
} {
0 two.two
}
do_hasfunction_test 1.5 {
SELECT json_insert( '{}', '$.y', json_extract(j, '$.x') ) FROM t1 WHERE a=2
} {
2 {{"y":"two"}}
}
do_hasfunction_test 1.6 {
SELECT json_insert( '{}', '$.y', coalesce( json_extract(j, '$.x'), 'five' ) )
FROM t1 WHERE a=2
} {
2 {{"y":"two"}}
}
finish_test