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Clarification of comments on sqlite3FindInIndex(). No changes to code. 

FossilOrigin-Name: 071cabd23cd010180711a138f891a0e358031dd128532def4f62c5764651bace
This commit is contained in:
drh 2017-11-17 15:02:00 +00:00
parent 7775e4a2b4
commit 7fc0ba0f4c
3 changed files with 14 additions and 16 deletions
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15
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@ -1,5 +1,5 @@
C Do\snot\scount\stemporary\sdatabases\sthat\shave\sbeen\sattached\susing\sATTACH\swhen\nfiguring\sout\sif\sa\smaster-journal\sfile\sis\srequired\sby\sa\stransaction.
D 2017-11-17T13:21:12.384
C Clarification\sof\scomments\son\ssqlite3FindInIndex().\s\sNo\schanges\sto\scode.
D 2017-11-17T15:02:00.058
F Makefile.in b142eb20482922153ebc77b261cdfd0a560ed05a81e9f6d9a2b0e8192922a1d2
F Makefile.linux-gcc 7bc79876b875010e8c8f9502eb935ca92aa3c434
F Makefile.msc a55372a22454e742ba7c8f6edf05b83213ec01125166ad7dcee0567e2f7fc81b
@ -423,7 +423,7 @@ F src/date.c 48f743d88bbe88f848532d333cca84f26e52a4f217e86f86be7fc1b919c33d74
F src/dbpage.c 8db4c97f630e7d83f884ea75caf1ffd0988c160e9d530194d93721c80821e0f6
F src/dbstat.c 7a4ba8518b6369ef3600c49cf9c918ad979acba610b2aebef1b656d649b96720
F src/delete.c e6a70fb58f6628f0ffc6d7221a6702c0d7b342c82520385b3996b364c22e0cb3
F src/expr.c 5257a9157f22f048ddcce5cd494d39633e89c2a4769671311b3e7875d262f746
F src/expr.c fe11b91bb65b869143bd42023427c4429778ae42c0a0db7762f68f75b347a958
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F src/fkey.c d617daf66b5515e2b42c1405b2b4984c30ca50fb705ab164271a9bf66c69e331
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@ -1677,8 +1677,7 @@ F vsixtest/vsixtest.tcl 6a9a6ab600c25a91a7acc6293828957a386a8a93
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Z 183368b52c0a93e109b0b85758c70894

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@ -1 +1 @@
93e012a317c8a4bfb84327616a597acabfcb24417197eefdccb8031bcf64e0c0
071cabd23cd010180711a138f891a0e358031dd128532def4f62c5764651bace

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src/expr.c
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@ -2186,16 +2186,15 @@ static int sqlite3InRhsIsConstant(Expr *pIn){
** pX->iTable made to point to the ephemeral table instead of an
** existing table.
**
** The inFlags parameter must contain exactly one of the bits
** IN_INDEX_MEMBERSHIP or IN_INDEX_LOOP. If inFlags contains
** IN_INDEX_MEMBERSHIP, then the generated table will be used for a
** fast membership test. When the IN_INDEX_LOOP bit is set, the
** IN index will be used to loop over all values of the RHS of the
** IN operator.
** The inFlags parameter must contain, at a minimum, one of the bits
** IN_INDEX_MEMBERSHIP or IN_INDEX_LOOP but not both. If inFlags contains
** IN_INDEX_MEMBERSHIP, then the generated table will be used for a fast
** membership test. When the IN_INDEX_LOOP bit is set, the IN index will
** be used to loop over all values of the RHS of the IN operator.
**
** When IN_INDEX_LOOP is used (and the b-tree will be used to iterate
** through the set members) then the b-tree must not contain duplicates.
** An epheremal table must be used unless the selected columns are guaranteed
** An epheremal table will be created unless the selected columns are guaranteed
** to be unique - either because it is an INTEGER PRIMARY KEY or due to
** a UNIQUE constraint or index.
**