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Fix a faulty assert() statement in the stale-register detection logic.

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Ticket [da5a09be6dabbf42].

FossilOrigin-Name: 219c296cc8cab13fa12b64c297bc4a98d8e21491309d97a031edf89ae77fce75
This commit is contained in:
drh 2020-03-02 01:50:48 +00:00
parent 7f05d52c4c
commit a2ec2e4843
3 changed files with 9 additions and 9 deletions
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@ -1,5 +1,5 @@
C Ensure\sthat\sthe\sNULL-scan\spass\scounter\sis\sinitialized\swhen\sa\sORDER\sBY\sNULLS\sLAST\nis\sused\son\sthe\sright\stable\sof\sa\sLEFT\sJOIN.\s\sTicket\s[e12a0ae526bb51c7].
D 2020-03-02T01:16:33.765
C Fix\sa\sfaulty\sassert()\sstatement\sin\sthe\sstale-register\sdetection\slogic.\nTicket\s[da5a09be6dabbf42].
D 2020-03-02T01:50:48.069
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F LICENSE.md df5091916dbb40e6e9686186587125e1b2ff51f022cc334e886c19a0e9982724
@ -609,7 +609,7 @@ F src/vdbeInt.h a17146053a1aa438474012998fe07e314f3df274a61491ad838ad85d848ac051
F src/vdbeapi.c 1252d80c548711e47a6d84dae88ed4e95d3fbb4e7bd0eaa1347299af7efddf02
F src/vdbeaux.c 2d8d863e6b85a5b4362a248c04d82f0df8df79be289b2fc75b488c3cd79ddb5f
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F src/vdbemem.c ff2a1fd86ea943efb7174bd74bc661815c449be6165e136e8849e1dc59e24353
F src/vdbemem.c ddca442b006db5010c1cf799c708d3ca5e7644c20ba8a32ea6757d33c4ba3da2
F src/vdbesort.c 2be76d26998ce2b3324cdcc9f6443728e54b6c7677c553ad909c7d7cfab587df
F src/vdbetrace.c fa3bf238002f0bbbdfb66cc8afb0cea284ff9f148d6439bc1f6f2b4c3b7143f0
F src/vtab.c 7b704a90515a239c6cdba6a66b1bb3a385e62326cceb5ecb05ec7a091d6b8515
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@ -1 +1 @@
704bb9a39acbee420c1d6ac9eb1466a02dd77d3334b938bfddf235973129b5fe
219c296cc8cab13fa12b64c297bc4a98d8e21491309d97a031edf89ae77fce75

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src/vdbemem.c
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@ -972,8 +972,8 @@ void sqlite3VdbeMemAboutToChange(Vdbe *pVdbe, Mem *pMem){
/* assert( (mFlags&MEM_Real)==0 || pMem->u.r==pX->u.r ); */
/* ^^ */
/* Cannot reliably compare doubles for equality */
assert( (mFlags&MEM_Str)==0 || (pMem->n==pX->n && pMem->z==pX->z) );
assert( (mFlags&MEM_Blob)==0 || sqlite3BlobCompare(pMem,pX)==0 );
assert( (mFlags&(MEM_Str|MEM_Blob))==0
|| (pMem->n==pX->n && pMem->z==pX->z) );
/* pMem is the register that is changing. But also mark pX as
** undefined so that we can quickly detect the shallow-copy error */