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perf enhancement

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This commit is contained in:
Ankit Patial
2025-11-16 16:21:35 +05:30
parent 29cddb6389
commit 1d9d9d9308
9 changed files with 917 additions and 35 deletions
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19
pgm_field.go
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@@ -45,7 +45,12 @@ func escapeSQLString(s string) string {
}
func (f Field) Name() string {
return strings.Split(string(f), ".")[1]
s := string(f)
idx := strings.LastIndexByte(s, '.')
if idx == -1 {
return s // Return as-is if no dot
}
return s[idx+1:] // Return part after last dot
}
func (f Field) String() string {
@@ -66,19 +71,19 @@ func ConcatWs(sep string, fields ...Field) Field {
}
// StringAgg creates a STRING_AGG SQL function.
// SECURITY: The exp parameter must be a valid field/column name, not arbitrary SQL.
// SECURITY: The field parameter provides type safety by accepting only Field type.
// The sep parameter should only be a constant string. Single quotes will be escaped.
func StringAgg(exp, sep string) Field {
func StringAgg(field Field, sep string) Field {
escapedSep := escapeSQLString(sep)
return Field("string_agg(" + exp + ",'" + escapedSep + "')")
return Field("string_agg(" + field.String() + ",'" + escapedSep + "')")
}
// StringAggCast creates a STRING_AGG SQL function with cast to varchar.
// SECURITY: The exp parameter must be a valid field/column name, not arbitrary SQL.
// SECURITY: The field parameter provides type safety by accepting only Field type.
// The sep parameter should only be a constant string. Single quotes will be escaped.
func StringAggCast(exp, sep string) Field {
func StringAggCast(field Field, sep string) Field {
escapedSep := escapeSQLString(sep)
return Field("string_agg(cast(" + exp + " as varchar),'" + escapedSep + "')")
return Field("string_agg(cast(" + field.String() + " as varchar),'" + escapedSep + "')")
}
// StringEscape will wrap field with: