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fix to_char: to_char(Nan) get 0 ==> 'Nan'

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obdev 2024-02-09 12:05:41 +00:00 committed by ob-robot
parent 14675c9ab3
commit 3faf4cd834
1 changed files with 16 additions and 4 deletions
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20
src/sql/engine/expr/ob_expr_oracle_to_char.cpp
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@ -984,11 +984,23 @@ int ObExprToCharCommon::process_number_sci_value(
LOG_WARN("allocate memory for number string failed", K(ret));
} else {
if (is_double) {
str_len = ob_gcvt_opt(input.get_double(), OB_GCVT_ARG_DOUBLE,
static_cast<int32_t>(alloc_size), buf, NULL, lib::is_oracle_mode(), TRUE);
double val = input.get_double();
if (isnan(fabs(val)) || fabs(val) == INFINITY){
str_len = strlen("Nan");
strncpy(buf, "Nan", str_len);
} else {
str_len = ob_gcvt_opt(val, OB_GCVT_ARG_DOUBLE,
static_cast<int32_t>(alloc_size), buf, NULL, lib::is_oracle_mode(), TRUE);
}
} else if (is_float) {
str_len = ob_gcvt_opt(input.get_float(), OB_GCVT_ARG_FLOAT,
static_cast<int32_t>(alloc_size), buf, NULL, lib::is_oracle_mode(), TRUE);
float val = input.get_float();
if (isnan(fabs(val)) || fabs(val) == INFINITY){
str_len = strlen("Nan");
strncpy(buf, "Nan", str_len);
} else {
str_len = ob_gcvt_opt(val, OB_GCVT_ARG_FLOAT,
static_cast<int32_t>(alloc_size), buf, NULL, lib::is_oracle_mode(), TRUE);
}
} else if (is_decimal_int) {
ObScale in_scale = expr.args_[0]->datum_meta_.scale_;
if (OB_FAIL(wide::to_string(input.get_decimal_int(), input.get_int_bytes(),