Virtual Table Scan Flags

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## SQLite C Interface

## Virtual Table Scan Flags

>     #define SQLITE_INDEX_SCAN_UNIQUE 0x00000001 /* Scan visits at most 1 row */
>     #define SQLITE_INDEX_SCAN_HEX    0x00000002 /* Display idxNum as hex */
>                                                 /* in EXPLAIN QUERY PLAN */

Virtual table implementations are allowed to set the sqlite3_index_info.idxFlags field to some combination of these bits.

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