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Omit the SQLITE_STOREP2 and SQLITE_KEEPNULL options from the comparison

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opcodes, allowing them to run faster.  This required refactoring the
vector comparison logic, which in turn required changing OP_ElseNotEq into
OP_ElseEq.

FossilOrigin-Name: 380b46054b6a9b67e57357815e8e94057253fa3cce838ae76e5d5031c6bd26b2
This commit is contained in:
drh
2021-03-29 18:53:47 +00:00
parent 871e7ff43d
commit 4bc20452b5
6 changed files with 57 additions and 97 deletions
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2
src/sqliteInt.h
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@@ -2104,9 +2104,7 @@ struct CollSeq {
** operator is NULL. It is added to certain comparison operators to
** prove that the operands are always NOT NULL.
*/
#define SQLITE_KEEPNULL 0x08 /* Used by vector == or <> */
#define SQLITE_JUMPIFNULL 0x10 /* jumps if either operand is NULL */
#define SQLITE_STOREP2 0x20 /* Store result in reg[P2] rather than jump */
#define SQLITE_NULLEQ 0x80 /* NULL=NULL */
#define SQLITE_NOTNULL 0x90 /* Assert that operands are never NULL */