42 lines
1.6 KiB
C
42 lines
1.6 KiB
C
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/*
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** Link this program against an SQLite library of unknown provenance in order
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** to display the compile-time maximum values for various settings.
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*/
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#include "sqlite3.h"
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#include <stdio.h>
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static const struct {
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int eCode;
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char *zName;
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} aLimit[] = {
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{ SQLITE_LIMIT_LENGTH, "SQLITE_MAX_LENGTH" },
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{ SQLITE_LIMIT_SQL_LENGTH, "SQLITE_MAX_SQL_LENGTH" },
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{ SQLITE_LIMIT_COLUMN, "SQLITE_MAX_COLUMN" },
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{ SQLITE_LIMIT_EXPR_DEPTH, "SQLITE_MAX_EXPR_DEPTH" },
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{ SQLITE_LIMIT_COMPOUND_SELECT, "SQLITE_MAX_COMPOUND_SELECT" },
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{ SQLITE_LIMIT_VDBE_OP, "SQLITE_MAX_VDBE_OP" },
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{ SQLITE_LIMIT_FUNCTION_ARG, "SQLITE_MAX_FUNCTION_ARG" },
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{ SQLITE_LIMIT_ATTACHED, "SQLITE_MAX_ATTACHED" },
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{ SQLITE_LIMIT_LIKE_PATTERN_LENGTH, "SQLITE_MAX_LIKE_PATTERN_LENGTH" },
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{ SQLITE_LIMIT_VARIABLE_NUMBER, "SQLITE_MAX_VARIABLE_NUMBER" },
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{ SQLITE_LIMIT_TRIGGER_DEPTH, "SQLITE_MAX_TRIGGER_DEPTH" },
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{ SQLITE_LIMIT_WORKER_THREADS, "SQLITE_MAX_WORKER_THREADS" },
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};
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static int maxLimit(sqlite3 *db, int eCode){
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int iOrig = sqlite3_limit(db, eCode, 0x7fffffff);
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return sqlite3_limit(db, eCode, iOrig);
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}
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int main(int argc, char **argv){
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sqlite3 *db;
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int j, rc;
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rc = sqlite3_open(":memory:", &db);
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if( rc==SQLITE_OK ){
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for(j=0; j<sizeof(aLimit)/sizeof(aLimit[0]); j++){
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printf("%-35s %10d\n", aLimit[j].zName, maxLimit(db, aLimit[j].eCode));
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}
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sqlite3_close(db);
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}
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}
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