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Rename SQLITE_FUNC_VARYING to SQLITE_FUNC_SLOCHNG - a more descriptive name

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for what that bit means.

FossilOrigin-Name: ff5137a6dd8cb2a9b629b3a244f52665e9c9ebce
This commit is contained in:
drh
2015-09-01 13:17:17 +00:00
parent 7d3d9daea2
commit a7f910b549
4 changed files with 18 additions and 16 deletions
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11
src/sqliteInt.h
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@@ -1396,7 +1396,8 @@ struct FuncDestructor {
#define SQLITE_FUNC_UNLIKELY 0x0400 /* Built-in unlikely() function */
#define SQLITE_FUNC_CONSTANT 0x0800 /* Constant inputs give a constant output */
#define SQLITE_FUNC_MINMAX 0x1000 /* True for min() and max() aggregates */
#define SQLITE_FUNC_VARYING 0x2000 /* Function that change in the long term */
#define SQLITE_FUNC_SLOCHNG 0x2000 /* "Slow Change". Value constant during a
** single query - might change over time */
/*
** The following three macros, FUNCTION(), LIKEFUNC() and AGGREGATE() are
@@ -1414,7 +1415,7 @@ struct FuncDestructor {
**
** DFUNCTION(zName, nArg, iArg, bNC, xFunc)
** Like FUNCTION except it omits the SQLITE_FUNC_CONSTANT flag and
** adds the SQLITE_FUNC_VARYING flag. Used for date & time functions
** adds the SQLITE_FUNC_SLOCHNG flag. Used for date & time functions
** and functions like sqlite_version() that can change, but not during
** a single query.
**
@@ -1439,13 +1440,13 @@ struct FuncDestructor {
{nArg, SQLITE_UTF8|(bNC*SQLITE_FUNC_NEEDCOLL), \
SQLITE_INT_TO_PTR(iArg), 0, xFunc, 0, 0, #zName, 0, 0}
#define DFUNCTION(zName, nArg, iArg, bNC, xFunc) \
{nArg, SQLITE_FUNC_VARYING|SQLITE_UTF8|(bNC*SQLITE_FUNC_NEEDCOLL), \
{nArg, SQLITE_FUNC_SLOCHNG|SQLITE_UTF8|(bNC*SQLITE_FUNC_NEEDCOLL), \
SQLITE_INT_TO_PTR(iArg), 0, xFunc, 0, 0, #zName, 0, 0}
#define FUNCTION2(zName, nArg, iArg, bNC, xFunc, extraFlags) \
{nArg,SQLITE_FUNC_CONSTANT|SQLITE_UTF8|(bNC*SQLITE_FUNC_NEEDCOLL)|extraFlags,\
SQLITE_INT_TO_PTR(iArg), 0, xFunc, 0, 0, #zName, 0, 0}
#define STR_FUNCTION(zName, nArg, pArg, bNC, xFunc) \
{nArg, SQLITE_FUNC_VARYING|SQLITE_UTF8|(bNC*SQLITE_FUNC_NEEDCOLL), \
{nArg, SQLITE_FUNC_SLOCHNG|SQLITE_UTF8|(bNC*SQLITE_FUNC_NEEDCOLL), \
pArg, 0, xFunc, 0, 0, #zName, 0, 0}
#define LIKEFUNC(zName, nArg, arg, flags) \
{nArg, SQLITE_FUNC_CONSTANT|SQLITE_UTF8|flags, \
@@ -2131,7 +2132,7 @@ struct Expr {
#define EP_MemToken 0x010000 /* Need to sqlite3DbFree() Expr.zToken */
#define EP_NoReduce 0x020000 /* Cannot EXPRDUP_REDUCE this Expr */
#define EP_Unlikely 0x040000 /* unlikely() or likelihood() function */
#define EP_ConstFunc 0x080000 /* A SQLITE_FUNC_CONSTANT or _VARYING function */
#define EP_ConstFunc 0x080000 /* A SQLITE_FUNC_CONSTANT or _SLOCHNG function */
#define EP_CanBeNull 0x100000 /* Can be null despite NOT NULL constraint */
#define EP_Subquery 0x200000 /* Tree contains a TK_SELECT operator */