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Overview
| Comment: | Window functions are never constant. |
|---|---|
| Downloads: | Tarball | ZIP archive | SQL archive |
| Timelines: | family | ancestors | descendants | both | trunk |
| Files: | files | file ages | folders |
| SHA3-256: |
35f0b5a8c7921f7419eeb11be8201fd6 |
| User & Date: | drh 2019-12-04 19:45:52 |
Context
|
2019-12-05
| ||
| 00:44 | Enhance the RTREE extension so that it give correct query results even if the query uses non-numeric constraints. Ticket [a55ab6d97d01ecbc] check-in: f898d04c user: drh tags: trunk | |
|
2019-12-04
| ||
| 19:45 | Window functions are never constant. check-in: 35f0b5a8 user: drh tags: trunk | |
| 15:08 | Ensure that an ALWAYS() in the rename logic really is always true, even for faulty inputs. check-in: 54410f0e user: drh tags: trunk | |
Changes
Changes to src/expr.c.
1937 1938 1939 1940 1941 1942 1943 1944 1945 1946 1947 1948 1949 1950 1951 |
}
switch( pExpr->op ){
/* Consider functions to be constant if all their arguments are constant
** and either pWalker->eCode==4 or 5 or the function has the
** SQLITE_FUNC_CONST flag. */
case TK_FUNCTION:
if( pWalker->eCode>=4 || ExprHasProperty(pExpr,EP_ConstFunc) ){
return WRC_Continue;
}else{
pWalker->eCode = 0;
return WRC_Abort;
}
case TK_ID:
/* Convert "true" or "false" in a DEFAULT clause into the
|
| > > |
1937 1938 1939 1940 1941 1942 1943 1944 1945 1946 1947 1948 1949 1950 1951 1952 1953 |
}
switch( pExpr->op ){
/* Consider functions to be constant if all their arguments are constant
** and either pWalker->eCode==4 or 5 or the function has the
** SQLITE_FUNC_CONST flag. */
case TK_FUNCTION:
if( (pWalker->eCode>=4 || ExprHasProperty(pExpr,EP_ConstFunc))
&& !ExprHasProperty(pExpr, EP_WinFunc)
){
return WRC_Continue;
}else{
pWalker->eCode = 0;
return WRC_Abort;
}
case TK_ID:
/* Convert "true" or "false" in a DEFAULT clause into the
|