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Fix the OP_Cast operator so that when casting to TEXT, it always leaves

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the result in the encoding of the database.  Ticket [0911b5d161b039c6].
Test cases in TH3.

FossilOrigin-Name: f347744e0d576f0250c29259cca755e57afded8956224114c01603c1bca5b3a4
This commit is contained in:
drh
2019-12-23 03:37:46 +00:00
parent 3d8e7a2f97
commit 0af6ddd3ca
5 changed files with 17 additions and 15 deletions
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16
manifest
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@@ -1,5 +1,5 @@
C Change\sthe\sassert()\sback\sinto\sa\stestcase().\s\sSee\salso\scheck-ins\n[9ab985a9c8160b90]\sand\s[ddb17d92df194337]\sand\sother\scheck-ins\sthat\sthose\nreference.\s\sFix\sfor\sticket\s[9d708e474201c001]
D 2019-12-23T02:43:52.798
C Fix\sthe\sOP_Cast\soperator\sso\sthat\swhen\scasting\sto\sTEXT,\sit\salways\sleaves\nthe\sresult\sin\sthe\sencoding\sof\sthe\sdatabase.\s\sTicket\s[0911b5d161b039c6].\nTest\scases\sin\sTH3.
D 2019-12-23T03:37:46.033
F .fossil-settings/empty-dirs dbb81e8fc0401ac46a1491ab34a7f2c7c0452f2f06b54ebb845d024ca8283ef1
F .fossil-settings/ignore-glob 35175cdfcf539b2318cb04a9901442804be81cd677d8b889fcc9149c21f239ea
F LICENSE.md df5091916dbb40e6e9686186587125e1b2ff51f022cc334e886c19a0e9982724
@@ -599,13 +599,13 @@ F src/upsert.c b445315c8958d8f17ec3297d06842e61dacaad0633ccaec1e4e160de7e562212
F src/utf.c 2f0fac345c7660d5c5bd3df9e9d8d33d4c27f366bcfb09e07443064d751a0507
F src/util.c 2c92bc706bbdb1c45a25180291e7e05a56e297aa5dd7b2bcd2b1c47e8bb05b17
F src/vacuum.c 82dcec9e7b1afa980288718ad11bc499651c722d7b9f32933c4d694d91cb6ebf
F src/vdbe.c edbd3ce5a927f54db387f39f385ab2a71c92a11d68e8dbf38295a024df4476bd
F src/vdbe.c f23ba176eb57bb3f9516a5021bd2ea1d7066623339556f391e68d99c06f9f877
F src/vdbe.h 3f068f00b23aebf392df142312ab5874588371c6d83e60d953f6d6b6453491c5
F src/vdbeInt.h bd589b8b7273286858950717e0e1ec5c88b18af45079a3366dc1371865cea704
F src/vdbeInt.h 1ccaf470287e2d153b16cf7b0274d436db2c2f74cdf14afd1a0ff4cb51548ae6
F src/vdbeapi.c 1252d80c548711e47a6d84dae88ed4e95d3fbb4e7bd0eaa1347299af7efddf02
F src/vdbeaux.c e041d20b5000abbd651f7d470c66eaa13e868f58a13c1a940b4d426c6d0d43b5
F src/vdbeblob.c 253ed82894924c362a7fa3079551d3554cd1cdace39aa833da77d3bc67e7c1b1
F src/vdbemem.c 2eb00a4d1a7d2c97510a4d1ccaf4e12c9143f2ced1c6b96b5eddc372183c9121
F src/vdbemem.c fa083086758379b52f8771d69424b273c7bd0f94413802404ee32cd5cc7cd870
F src/vdbesort.c a3be032cc3fee0e3af31773af4a7a6f931b7230a34f53282ccf1d9a2a72343be
F src/vdbetrace.c fa3bf238002f0bbbdfb66cc8afb0cea284ff9f148d6439bc1f6f2b4c3b7143f0
F src/vtab.c a2fead3e97fca54fcf3f3db784e17c9ee2d39a0c5ad323e9d514855106300a86
@@ -1852,7 +1852,7 @@ F vsixtest/vsixtest.tcl 6a9a6ab600c25a91a7acc6293828957a386a8a93
F vsixtest/vsixtest.vcxproj.data 2ed517e100c66dc455b492e1a33350c1b20fbcdc
F vsixtest/vsixtest.vcxproj.filters 37e51ffedcdb064aad6ff33b6148725226cd608e
F vsixtest/vsixtest_TemporaryKey.pfx e5b1b036facdb453873e7084e1cae9102ccc67a0
P 36fdeb4f0a66970a35de688b617f90899c89cfdfab659f864df99aa7ebf854ea
R b61ef50f9763d22c9ba3b648f8895f79
P 2c44c73499154bc57634a54cb743642d0aacc93a1336fbb8bb3eb5dbbf616357
R b6da56a8c5d74a2eb68d71835ddfe15f
U drh
Z 6074358839366f26b48e0a14aadff323
Z 5b15760d80bfee0d0e59d93bf584a88d

2
manifest.uuid
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@@ -1 +1 @@
2c44c73499154bc57634a54cb743642d0aacc93a1336fbb8bb3eb5dbbf616357
f347744e0d576f0250c29259cca755e57afded8956224114c01603c1bca5b3a4

5
src/vdbe.c
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@@ -1866,9 +1866,10 @@ case OP_Cast: { /* in1 */
pIn1 = &aMem[pOp->p1];
memAboutToChange(p, pIn1);
rc = ExpandBlob(pIn1);
sqlite3VdbeMemCast(pIn1, pOp->p2, encoding);
UPDATE_MAX_BLOBSIZE(pIn1);
if( rc ) goto abort_due_to_error;
rc = sqlite3VdbeMemCast(pIn1, pOp->p2, encoding);
if( rc ) goto abort_due_to_error;
UPDATE_MAX_BLOBSIZE(pIn1);
REGISTER_TRACE(pOp->p1, pIn1);
break;
}

2
src/vdbeInt.h
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@@ -529,7 +529,7 @@ int sqlite3VdbeBooleanValue(Mem*, int ifNull);
void sqlite3VdbeIntegerAffinity(Mem*);
int sqlite3VdbeMemRealify(Mem*);
int sqlite3VdbeMemNumerify(Mem*);
void sqlite3VdbeMemCast(Mem*,u8,u8);
int sqlite3VdbeMemCast(Mem*,u8,u8);
int sqlite3VdbeMemFromBtree(BtCursor*,u32,u32,Mem*);
void sqlite3VdbeMemRelease(Mem *p);
int sqlite3VdbeMemFinalize(Mem*, FuncDef*);

7
src/vdbemem.c
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@@ -747,8 +747,8 @@ int sqlite3VdbeMemNumerify(Mem *pMem){
** affinity even if that results in loss of data. This routine is
** used (for example) to implement the SQL "cast()" operator.
*/
void sqlite3VdbeMemCast(Mem *pMem, u8 aff, u8 encoding){
if( pMem->flags & MEM_Null ) return;
int sqlite3VdbeMemCast(Mem *pMem, u8 aff, u8 encoding){
if( pMem->flags & MEM_Null ) return SQLITE_OK;
switch( aff ){
case SQLITE_AFF_BLOB: { /* Really a cast to BLOB */
if( (pMem->flags & MEM_Blob)==0 ){
@@ -779,9 +779,10 @@ void sqlite3VdbeMemCast(Mem *pMem, u8 aff, u8 encoding){
sqlite3ValueApplyAffinity(pMem, SQLITE_AFF_TEXT, encoding);
assert( pMem->flags & MEM_Str || pMem->db->mallocFailed );
pMem->flags &= ~(MEM_Int|MEM_Real|MEM_IntReal|MEM_Blob|MEM_Zero);
break;
return sqlite3VdbeChangeEncoding(pMem, encoding);
}
}
return SQLITE_OK;
}
/*