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Proposed optimization to the IS NULL and NOT NULL operators that avoids

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loading the entire content of larges strings and BLOBs.  Response to
[forum:/info/3c08d4715dc05b00|forum post 3c08d4715dc05b00].

FossilOrigin-Name: 45f171565442f9fd6574fb93ae7abe83c168b20be68af42531bc55571450d3ab
This commit is contained in:
drh
2022-10-13 12:47:33 +00:00
parent 1ffb6be119
commit e995d2c226
6 changed files with 33 additions and 13 deletions
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src/vdbe.h
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@@ -228,6 +228,7 @@ void sqlite3VdbeChangeP1(Vdbe*, int addr, int P1);
void sqlite3VdbeChangeP2(Vdbe*, int addr, int P2);
void sqlite3VdbeChangeP3(Vdbe*, int addr, int P3);
void sqlite3VdbeChangeP5(Vdbe*, u16 P5);
void sqlite3VdbeTypeofColumn(Vdbe*, int);
void sqlite3VdbeJumpHere(Vdbe*, int addr);
void sqlite3VdbeJumpHereOrPopInst(Vdbe*, int addr);
int sqlite3VdbeChangeToNoop(Vdbe*, int addr);