diff options
| -rw-r--r-- | include/decimal.h | 9 | ||||
| -rw-r--r-- | mysql-test/r/type_newdecimal.result | 11 | ||||
| -rw-r--r-- | mysql-test/t/type_newdecimal.test | 14 | ||||
| -rw-r--r-- | sql/my_decimal.h | 6 | ||||
| -rw-r--r-- | strings/decimal.c | 9 |
5 files changed, 43 insertions, 6 deletions
diff --git a/include/decimal.h b/include/decimal.h index 530ed9e1757..c377bd4a400 100644 --- a/include/decimal.h +++ b/include/decimal.h @@ -21,6 +21,15 @@ typedef enum decimal_round_mode; typedef int32 decimal_digit_t; +/** + intg is the number of *decimal* digits (NOT number of decimal_digit_t's !) + before the point + frac is the number of decimal digits after the point + len is the length of buf (length of allocated space) in decimal_digit_t's, + not in bytes + sign false means positive, true means negative + buf is an array of decimal_digit_t's + */ typedef struct st_decimal_t { int intg, frac, len; my_bool sign; diff --git a/mysql-test/r/type_newdecimal.result b/mysql-test/r/type_newdecimal.result index c301a7dd629..0c6c1333e9b 100644 --- a/mysql-test/r/type_newdecimal.result +++ b/mysql-test/r/type_newdecimal.result @@ -1927,3 +1927,14 @@ f1 0.000000000000000000000000 DROP TABLE IF EXISTS t1; End of 5.1 tests +# +# BUG#12911710 - VALGRIND FAILURE IN +# ROW-DEBUG:PERFSCHEMA.SOCKET_SUMMARY_BY_INSTANCE_FUNC +# +CREATE TABLE t1(d1 DECIMAL(60,0) NOT NULL, +d2 DECIMAL(60,0) NOT NULL); +INSERT INTO t1 (d1, d2) VALUES(0.0, 0.0); +SELECT d1 * d2 FROM t1; +d1 * d2 +0 +DROP TABLE t1; diff --git a/mysql-test/t/type_newdecimal.test b/mysql-test/t/type_newdecimal.test index 31a8808da55..567d6c0b6a1 100644 --- a/mysql-test/t/type_newdecimal.test +++ b/mysql-test/t/type_newdecimal.test @@ -1526,3 +1526,17 @@ DROP TABLE IF EXISTS t1; --echo End of 5.1 tests + +--echo # +--echo # BUG#12911710 - VALGRIND FAILURE IN +--echo # ROW-DEBUG:PERFSCHEMA.SOCKET_SUMMARY_BY_INSTANCE_FUNC +--echo # + +CREATE TABLE t1(d1 DECIMAL(60,0) NOT NULL, + d2 DECIMAL(60,0) NOT NULL); + +INSERT INTO t1 (d1, d2) VALUES(0.0, 0.0); +SELECT d1 * d2 FROM t1; + +DROP TABLE t1; + diff --git a/sql/my_decimal.h b/sql/my_decimal.h index c7a99e10233..21f485560da 100644 --- a/sql/my_decimal.h +++ b/sql/my_decimal.h @@ -101,12 +101,8 @@ public: { len= DECIMAL_BUFF_LENGTH; buf= buffer; -#if !defined (HAVE_purify) && !defined(DBUG_OFF) - /* Set buffer to 'random' value to find wrong buffer usage */ - for (uint i= 0; i < DECIMAL_BUFF_LENGTH; i++) - buffer[i]= i; -#endif } + my_decimal() { init(); diff --git a/strings/decimal.c b/strings/decimal.c index 43957c7dc19..6c89657004c 100644 --- a/strings/decimal.c +++ b/strings/decimal.c @@ -1423,11 +1423,18 @@ int bin2decimal(const uchar *from, decimal_t *to, int precision, int scale) buf++; } my_afree(d_copy); + + /* + No digits? We have read the number zero, of unspecified precision. + Make it a proper zero, with non-zero precision. + */ + if (to->intg == 0 && to->frac == 0) + decimal_make_zero(to); return error; err: my_afree(d_copy); - decimal_make_zero(((decimal_t*) to)); + decimal_make_zero(to); return(E_DEC_BAD_NUM); } |