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Use cstring_to_text_with_len when length is known.

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This avoids a potentially-expensive extra call to strlen().

David Rowley
This commit is contained in:
Robert Haas 2013-11-18 10:17:07 -05:00
parent 4c697d8f48
commit f1df4731ee
2 changed files with 7 additions and 7 deletions
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2
contrib/pageinspect/fsmfuncs.c
View file

@ -56,5 +56,5 @@ fsm_page_contents(PG_FUNCTION_ARGS)
}
appendStringInfo(&sinfo, "fp_next_slot: %d\n", fsmpage->fp_next_slot);
PG_RETURN_TEXT_P(cstring_to_text(sinfo.data));
PG_RETURN_TEXT_P(cstring_to_text_with_len(sinfo.data, sinfo.len));
}

12
src/backend/utils/adt/json.c
View file

@ -1499,7 +1499,7 @@ array_to_json(PG_FUNCTION_ARGS)
array_to_json_internal(array, result, false);
PG_RETURN_TEXT_P(cstring_to_text(result->data));
PG_RETURN_TEXT_P(cstring_to_text_with_len(result->data, result->len));
}
/*
@ -1516,7 +1516,7 @@ array_to_json_pretty(PG_FUNCTION_ARGS)
array_to_json_internal(array, result, use_line_feeds);
PG_RETURN_TEXT_P(cstring_to_text(result->data));
PG_RETURN_TEXT_P(cstring_to_text_with_len(result->data, result->len));
}
/*
@ -1532,7 +1532,7 @@ row_to_json(PG_FUNCTION_ARGS)
composite_to_json(array, result, false);
PG_RETURN_TEXT_P(cstring_to_text(result->data));
PG_RETURN_TEXT_P(cstring_to_text_with_len(result->data, result->len));
}
/*
@ -1549,7 +1549,7 @@ row_to_json_pretty(PG_FUNCTION_ARGS)
composite_to_json(array, result, use_line_feeds);
PG_RETURN_TEXT_P(cstring_to_text(result->data));
PG_RETURN_TEXT_P(cstring_to_text_with_len(result->data, result->len));
}
/*
@ -1607,7 +1607,7 @@ to_json(PG_FUNCTION_ARGS)
datum_to_json(val, false, result, tcategory, typoutput);
PG_RETURN_TEXT_P(cstring_to_text(result->data));
PG_RETURN_TEXT_P(cstring_to_text_with_len(result->data, result->len));
}
/*
@ -1733,7 +1733,7 @@ json_agg_finalfn(PG_FUNCTION_ARGS)
appendStringInfoChar(state, ']');
PG_RETURN_TEXT_P(cstring_to_text(state->data));
PG_RETURN_TEXT_P(cstring_to_text_with_len(state->data, state->len));
}
/*