From 68eb420cabe5b26b09d6d4a2724ae12699bdee87 Mon Sep 17 00:00:00 2001
From: Ashin Gau <AshinGau@users.noreply.github.com>
Date: Wed, 10 May 2023 00:58:09 +0800
Subject: [PATCH] [fix](MySQL) the way Doris handles boolean type is consistent
 with MySQL (#19416)

---
 .../java/org/apache/doris/analysis/BinaryPredicate.java  | 4 ++++
 .../java/org/apache/doris/analysis/StringLiteral.java    | 9 ++++++++-
 2 files changed, 12 insertions(+), 1 deletion(-)

diff --git a/fe/fe-core/src/main/java/org/apache/doris/analysis/BinaryPredicate.java b/fe/fe-core/src/main/java/org/apache/doris/analysis/BinaryPredicate.java
index 0d4e4d2d61..112460564e 100644
--- a/fe/fe-core/src/main/java/org/apache/doris/analysis/BinaryPredicate.java
+++ b/fe/fe-core/src/main/java/org/apache/doris/analysis/BinaryPredicate.java
@@ -422,6 +422,10 @@ public class BinaryPredicate extends Predicate implements Writable {
                 && (t2 == PrimitiveType.BIGINT || t2 == PrimitiveType.LARGEINT)) {
             return Type.LARGEINT;
         }
+        // MySQL will try to parse string as bigint, if failed, will take string as 0.
+        if (t1 == PrimitiveType.BIGINT && t2.isCharFamily()) {
+            return Type.BIGINT;
+        }
 
         // Implicit conversion affects query performance.
         // For a common example datekey='20200825' which datekey is int type.
diff --git a/fe/fe-core/src/main/java/org/apache/doris/analysis/StringLiteral.java b/fe/fe-core/src/main/java/org/apache/doris/analysis/StringLiteral.java
index 59c34c4a7b..90c17ee8f1 100644
--- a/fe/fe-core/src/main/java/org/apache/doris/analysis/StringLiteral.java
+++ b/fe/fe-core/src/main/java/org/apache/doris/analysis/StringLiteral.java
@@ -227,7 +227,14 @@ public class StringLiteral extends LiteralExpr {
                             throw new AnalysisException(e.getMessage());
                         }
                     }
-                    return new IntLiteral(value, targetType);
+                    // MySQL will try to parse string as bigint, if failed, will cast string as 0.
+                    long longValue;
+                    try {
+                        longValue = Long.parseLong(value);
+                    } catch (NumberFormatException e) {
+                        longValue = 0L;
+                    }
+                    return new IntLiteral(longValue, targetType);
                 case LARGEINT:
                     if (VariableVarConverters.hasConverter(beConverted)) {
                         try {