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For ALTER TABLE RENAME COLUMN, do not try to filter virtual tables out of

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calls to sqlite_rename_column().  Let the function filter them itself.
The WHERE clause can mistakenly let virtual tables through if the
sqlite_schema table is corrupt.  The sqlite_rename_column() function must
deal with them.  We might as well let it deal with them always.

FossilOrigin-Name: 7c82b43b7cdb825f431d3a778f8b34e32666ccb3b067f1f2533d3b3dcca7bdc9
This commit is contained in:
drh 2021-09-16 13:20:29 +00:00
parent 11eb9c6a28
commit e73e957c1e
3 changed files with 9 additions and 10 deletions
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12
manifest
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@ -1,5 +1,5 @@
C Under\sSQLITE_DEBUG\swith\sPRAGMA\svdbe_trace=ON,\sshow\san\soutput\sline\sif\sthe\nVDBE\saborts\sfor\sany\sreason.
D 2021-09-16T12:33:53.147
C For\sALTER\sTABLE\sRENAME\sCOLUMN,\sdo\snot\stry\sto\sfilter\svirtual\stables\sout\sof\ncalls\sto\ssqlite_rename_column().\s\sLet\sthe\sfunction\sfilter\sthem\sitself.\nThe\sWHERE\sclause\scan\smistakenly\slet\svirtual\stables\sthrough\sif\sthe\nsqlite_schema\stable\sis\scorrupt.\s\sThe\ssqlite_rename_column()\sfunction\smust\ndeal\swith\sthem.\s\sWe\smight\sas\swell\slet\sit\sdeal\swith\sthem\salways.
D 2021-09-16T13:20:29.202
F .fossil-settings/empty-dirs dbb81e8fc0401ac46a1491ab34a7f2c7c0452f2f06b54ebb845d024ca8283ef1
F .fossil-settings/ignore-glob 35175cdfcf539b2318cb04a9901442804be81cd677d8b889fcc9149c21f239ea
F LICENSE.md df5091916dbb40e6e9686186587125e1b2ff51f022cc334e886c19a0e9982724
@ -479,7 +479,7 @@ F spec.template 86a4a43b99ebb3e75e6b9a735d5fd293a24e90ca
F sqlite.pc.in 42b7bf0d02e08b9e77734a47798d1a55a9e0716b
F sqlite3.1 fc7ad8990fc8409983309bb80de8c811a7506786
F sqlite3.pc.in 48fed132e7cb71ab676105d2a4dc77127d8c1f3a
F src/alter.c 38975b971a4c36dbcc8004c74b492213a851ab368d29238c531a22636508a5d4
F src/alter.c a4e20094bb7e6ca5fa832779dc0b6aedfed4cab92144d3bc754fc6dfe6f26f34
F src/analyze.c abbaaf7dca79d1c31c713500324fc0b55bf3eeac5b7b07001452a3d0f210de4f
F src/attach.c a514e81758ba7b3a3a0501faf70af6cfc509de8810235db726cfc9f25165e929
F src/auth.c f4fa91b6a90bbc8e0d0f738aa284551739c9543a367071f55574681e0f24f8cf
@ -1923,7 +1923,7 @@ F vsixtest/vsixtest.tcl 6a9a6ab600c25a91a7acc6293828957a386a8a93
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Z b89610ebb549109e13a60adefcff4b4f
Z 5124dd372b8dc8ce068a8819461c7507

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manifest.uuid
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@ -1 +1 @@
7e3d6810039ca4563aa68dfa3671f570792a10f75c8eea68aa7dfd02d17702ca
7c82b43b7cdb825f431d3a778f8b34e32666ccb3b067f1f2533d3b3dcca7bdc9

5
src/alter.c
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@ -647,8 +647,7 @@ void sqlite3AlterRenameColumn(
"UPDATE \"%w\"." DFLT_SCHEMA_TABLE " SET "
"sql = sqlite_rename_column(sql, type, name, %Q, %Q, %d, %Q, %d, %d) "
"WHERE name NOT LIKE 'sqliteX_%%' ESCAPE 'X' "
" AND (type != 'index' OR tbl_name = %Q)"
" AND sql NOT LIKE 'create virtual%%'",
" AND (type != 'index' OR tbl_name = %Q)",
zDb,
zDb, pTab->zName, iCol, zNew, bQuote, iSchema==1,
pTab->zName
@ -1498,7 +1497,7 @@ static void renameColumnFunc(
sqlite3WalkSelect(&sWalker, pSelect);
}
if( rc!=SQLITE_OK ) goto renameColumnFunc_done;
}else if( ALWAYS(IsOrdinaryTable(sParse.pNewTable)) ){
}else if( IsOrdinaryTable(sParse.pNewTable) ){
/* A regular table */
int bFKOnly = sqlite3_stricmp(zTable, sParse.pNewTable->zName);
FKey *pFKey;