/*

** Link this program against an SQLite library of unknown provenance in order

** to display the compile-time maximum values for various settings.

*/

#include "sqlite3.h"

#include <stdio.h>

static const struct {

int eCode;

char *zName;

} aLimit[] = {

{ SQLITE_LIMIT_LENGTH, "SQLITE_MAX_LENGTH" },

{ SQLITE_LIMIT_SQL_LENGTH, "SQLITE_MAX_SQL_LENGTH" },

{ SQLITE_LIMIT_COLUMN, "SQLITE_MAX_COLUMN" },

{ SQLITE_LIMIT_EXPR_DEPTH, "SQLITE_MAX_EXPR_DEPTH" },

{ SQLITE_LIMIT_COMPOUND_SELECT, "SQLITE_MAX_COMPOUND_SELECT" },

{ SQLITE_LIMIT_VDBE_OP, "SQLITE_MAX_VDBE_OP" },

{ SQLITE_LIMIT_FUNCTION_ARG, "SQLITE_MAX_FUNCTION_ARG" },

{ SQLITE_LIMIT_ATTACHED, "SQLITE_MAX_ATTACHED" },

{ SQLITE_LIMIT_LIKE_PATTERN_LENGTH, "SQLITE_MAX_LIKE_PATTERN_LENGTH" },

{ SQLITE_LIMIT_VARIABLE_NUMBER, "SQLITE_MAX_VARIABLE_NUMBER" },

{ SQLITE_LIMIT_TRIGGER_DEPTH, "SQLITE_MAX_TRIGGER_DEPTH" },

{ SQLITE_LIMIT_WORKER_THREADS, "SQLITE_MAX_WORKER_THREADS" },

};

static int maxLimit(sqlite3 *db, int eCode){

int iOrig = sqlite3_limit(db, eCode, 0x7fffffff);

return sqlite3_limit(db, eCode, iOrig);

}

int main(int argc, char **argv){

sqlite3 *db;

int j, rc;

rc = sqlite3_open(":memory:", &db);

if( rc==SQLITE_OK ){

for(j=0; j<sizeof(aLimit)/sizeof(aLimit[0]); j++){

printf("%-35s %10d\n", aLimit[j].zName, maxLimit(db, aLimit[j].eCode));

}

sqlite3_close(db);

}

}