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Prevent NULLS FIRST/LAST from being used in CREATE INDEX and other statements.

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FossilOrigin-Name: bb9767a287097a615aeb4abdba689b10e1a1c36c016c8e55905b508075e62c86
This commit is contained in:
dan
2019-08-19 17:26:32 +00:00
parent 8328369740
commit 9105fd5189
8 changed files with 96 additions and 17 deletions
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4
src/sqliteInt.h
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@@ -2605,11 +2605,12 @@ struct ExprList {
Expr *pExpr; /* The parse tree for this expression */
char *zName; /* Token associated with this expression */
char *zSpan; /* Original text of the expression */
u8 sortFlags; /* 1 for DESC or 0 for ASC */
u8 sortFlags; /* Mask of KEYINFO_ORDER_* flags */
unsigned done :1; /* A flag to indicate when processing is finished */
unsigned bSpanIsTab :1; /* zSpan holds DB.TABLE.COLUMN */
unsigned reusable :1; /* Constant expression is reusable */
unsigned bSorterRef :1; /* Defer evaluation until after sorting */
unsigned bNulls: 1; /* True if explicit "NULLS FIRST/LAST" */
union {
struct {
u16 iOrderByCol; /* For ORDER BY, column number in result set */
@@ -4366,6 +4367,7 @@ void sqlite3KeyInfoUnref(KeyInfo*);
KeyInfo *sqlite3KeyInfoRef(KeyInfo*);
KeyInfo *sqlite3KeyInfoOfIndex(Parse*, Index*);
KeyInfo *sqlite3KeyInfoFromExprList(Parse*, ExprList*, int, int);
int sqlite3HasExplicitNulls(Parse*, ExprList*);
#ifdef SQLITE_DEBUG
int sqlite3KeyInfoIsWriteable(KeyInfo*);