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[TD-5578]<fix> the max length of like condition can be configured

This commit is contained in:
wangmm0220 2021-08-02 17:01:52 +08:00
parent 9e6dd46611
commit 5bc82ffc3f
4 changed files with 16 additions and 2 deletions
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2
src/client/src/tscSQLParser.c
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@ -4401,7 +4401,7 @@ static int32_t validateLikeExpr(tSqlExpr* pExpr, STableMeta* pTableMeta, int32_t
tSqlExpr* pRight = pExpr->pRight;
if (pExpr->tokenId == TK_LIKE) {
if (pRight->value.nLen > TSDB_PATTERN_STRING_MAX_LEN) {
if (pRight->value.nLen > tsMaxLikeStringLen) {
return invalidOperationMsg(msgBuf, msg1);
}

1
src/common/inc/tglobal.h
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@ -70,6 +70,7 @@ extern int8_t tsKeepOriginalColumnName;
// client
extern int32_t tsMaxSQLStringLen;
extern int32_t tsMaxLikeStringLen;
extern int8_t tsTscEnableRecordSql;
extern int32_t tsMaxNumOfOrderedResults;
extern int32_t tsMinSlidingTime;

13
src/common/src/tglobal.c
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@ -25,6 +25,7 @@
#include "tutil.h"
#include "tlocale.h"
#include "ttimezone.h"
#include "tcompare.h"
// cluster
char tsFirst[TSDB_EP_LEN] = {0};
@ -75,6 +76,7 @@ int32_t tsCompressMsgSize = -1;
// client
int32_t tsMaxSQLStringLen = TSDB_MAX_ALLOWED_SQL_LEN;
int32_t tsMaxLikeStringLen = TSDB_PATTERN_STRING_MAX_LEN;
int8_t tsTscEnableRecordSql = 0;
// the maximum number of results for projection query on super table that are returned from
@ -984,6 +986,16 @@ static void doInitGlobalConfig(void) {
cfg.unitType = TAOS_CFG_UTYPE_BYTE;
taosInitConfigOption(cfg);
cfg.option = "maxLikeLength";
cfg.ptr = &tsMaxLikeStringLen;
cfg.valType = TAOS_CFG_VTYPE_INT32;
cfg.cfgType = TSDB_CFG_CTYPE_B_CONFIG | TSDB_CFG_CTYPE_B_CLIENT | TSDB_CFG_CTYPE_B_SHOW;
cfg.minValue = 0;
cfg.maxValue = TSDB_MAX_ALLOWED_SQL_LEN;
cfg.ptrLength = 0;
cfg.unitType = TAOS_CFG_UTYPE_BYTE;
taosInitConfigOption(cfg);
cfg.option = "maxNumOfOrderedRes";
cfg.ptr = &tsMaxNumOfOrderedResults;
cfg.valType = TAOS_CFG_VTYPE_INT32;
@ -1531,6 +1543,7 @@ static void doInitGlobalConfig(void) {
cfg.unitType = TAOS_CFG_UTYPE_NONE;
taosInitConfigOption(cfg);
assert(tsGlobalConfigNum <= TSDB_CFG_MAX_NUM);
#ifdef TD_TSZ
// lossy compress
cfg.option = "lossyColumns";

2
src/util/inc/tcompare.h
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@ -25,7 +25,7 @@ extern "C" {
#define TSDB_PATTERN_MATCH 0
#define TSDB_PATTERN_NOMATCH 1
#define TSDB_PATTERN_NOWILDCARDMATCH 2
#define TSDB_PATTERN_STRING_MAX_LEN 20
#define TSDB_PATTERN_STRING_MAX_LEN 100
#define FLT_COMPAR_TOL_FACTOR 4
#define FLT_EQUAL(_x, _y) (fabs((_x) - (_y)) <= (FLT_COMPAR_TOL_FACTOR * FLT_EPSILON))