Method Lower

be/src/exprs/string-functions-ir.cc:295–302

Marks as IR_ALWAYS_INLINE since this is called in MaskFunctions::MaskHash(). So the caller can also replace GetConstFnAttr() calls in codegen.

// Marks as IR_ALWAYS_INLINE since this is called in MaskFunctions::MaskHash().
// So the caller can also replace GetConstFnAttr() calls in codegen.
IR_ALWAYS_INLINE StringVal StringFunctions::Lower(FunctionContext* context,
    const StringVal& str) {
  if (str.is_null) return StringVal::null();
  if (context->impl()->GetConstFnAttr(FunctionContextImpl::UTF8_MODE)) {
    return LowerUtf8(context, str);
  }
  return LowerAscii(context, str);
}

StringVal StringFunctions::LowerAscii(FunctionContext* context, const StringVal& str) {
  // Not in UTF-8 mode, only English alphabetic characters will be converted.