issue #873: No error when `=` in equal condition when column is not of array type

h2/src/docsrc/html/changelog.html

@@ -21,6 +21,8 @@ Change Log
 
 <h2>Next Version (unreleased)</h2>
 <ul>
+<li>Issue #873: No error when `=` in equal condition when column is not of array type 
+</li>
 <li>Issue #1069: Failed to add DATETIME(3) column since 1.4.197
 </li>
 <li>Issue #456: H2 table privileges referring to old schema after schema rename

h2/src/docsrc/textbase/_messages_en.prop

@@ -140,6 +140,7 @@
 90107=Cannot drop {0} because {1} depends on it
 90108=Out of memory.
 90109=View {0} is invalid: {1}
+90110=Comparing ARRAY to scalar value
 90111=Error accessing linked table with SQL statement {0}, cause: {1}
 90112=Row not found when trying to delete from index {0}
 90113=Unsupported connection setting {0}

h2/src/main/org/h2/api/ErrorCode.java

@@ -1628,6 +1628,17 @@ public class ErrorCode {
      */
     public static final int VIEW_IS_INVALID_2 = 90109;
 
+    /**
+     * The error with code <code>90110</code> is thrown when
+     * trying to compare an array value against a non-array value.
+     * Example:
+     * <pre>
+     * CREATE TABLE test (id INT NOT NULL, name VARCHAR);
+     * select * from test where id = (1, 2);
+     * </pre>
+     */
+    public static final int COMPARING_ARRAY_TO_SCALAR = 90110;
+
     /**
      * The error with code <code>90111</code> is thrown when
      * an exception occurred while accessing a linked table.
@@ -1979,7 +1990,7 @@ public class ErrorCode {
      */
     public static final int ROW_NOT_FOUND_IN_PRIMARY_INDEX = 90143;
 
-    // next are 90110, 90122, 90144
+    // next are 90122, 90144
 
     private ErrorCode() {
         // utility class

h2/src/main/org/h2/expression/Comparison.java

@@ -7,6 +7,7 @@ package org.h2.expression;
 
 import java.util.ArrayList;
 import java.util.Arrays;
+import org.h2.api.ErrorCode;
 import org.h2.engine.Database;
 import org.h2.engine.Session;
 import org.h2.engine.SysProperties;
@@ -16,7 +17,11 @@ import org.h2.table.Column;
 import org.h2.table.ColumnResolver;
 import org.h2.table.TableFilter;
 import org.h2.util.MathUtils;
-import org.h2.value.*;
+import org.h2.value.Value;
+import org.h2.value.ValueBoolean;
+import org.h2.value.ValueEnum;
+import org.h2.value.ValueGeometry;
+import org.h2.value.ValueNull;
 
 /**
  * Example comparison expressions are ID=1, NAME=NAME, NAME IS NULL.
@@ -177,6 +182,9 @@ public class Comparison extends Condition {
         left = left.optimize(session);
         if (right != null) {
             right = right.optimize(session);
+            if (right.getType() == Value.ARRAY && left.getType() != Value.ARRAY) {
+                throw DbException.get(ErrorCode.COMPARING_ARRAY_TO_SCALAR);
+            }
             if (right instanceof ExpressionColumn) {
                 if (left.isConstant() || left instanceof Parameter) {
                     Expression temp = left;

h2/src/main/org/h2/res/_messages_cs.prop

@@ -140,6 +140,7 @@
 90107=Nelze odstranit {0}, protože {1} na něm závisí
 90108=Nedostatek paměti.
 90109=Pohled {0} je neplatný: {1}
+90110=#Comparing ARRAY to scalar value
 90111=Chyba přístupu propojené tabulky s SQL příkazem {0}, příčina: {1}
 90112=Řádek nebyl nalezen při pokusu o smazání z indexu {0}
 90113=Nepodporované nastavení připojení {0}

h2/src/main/org/h2/res/_messages_de.prop

@@ -140,6 +140,7 @@
 90107=Kann {0} nicht löschen weil {1} davon abhängt
 90108=Nicht genug Hauptspeicher.
 90109=View {0} ist ungültig: {1}
+90110=#Comparing ARRAY to scalar value
 90111=Fehler beim Zugriff auf eine verknüpfte Tabelle mit SQL Befehl {0}, Grund: {1}
 90112=Zeile nicht gefunden beim Löschen von Index {0}
 90113=Datenbank-Verbindungs Option {0} nicht unterstützt

h2/src/main/org/h2/res/_messages_en.prop

@@ -140,6 +140,7 @@
 90107=Cannot drop {0} because {1} depends on it
 90108=Out of memory.
 90109=View {0} is invalid: {1}
+90110=Comparing ARRAY to scalar value
 90111=Error accessing linked table with SQL statement {0}, cause: {1}
 90112=Row not found when trying to delete from index {0}
 90113=Unsupported connection setting {0}

h2/src/main/org/h2/res/_messages_es.prop

@@ -140,6 +140,7 @@
 90107=Imposible eliminar {0} debido a que {1} depende de él.
 90108=Memoria Insuficiente - Out of memory. Tamaño: {0}
 90109=La Vista {0} es invalida: {1}
+90110=#Comparing ARRAY to scalar value
 90111=Error accediendo Linked Table con sentencia SQL {0}, causa: {1}
 90112=Fila no encontrada mientras se intentaba borrar del indice {0}
 90113=Parametro de conexión No soportado {0}

h2/src/main/org/h2/res/_messages_fr.prop

@@ -140,6 +140,7 @@
 90107=Impossible de supprimer {0} car {1} dépend de lui
 90108=Mémoire insuffisante.
 90109=La vue {0} est invalide: {1}
+90110=#Comparing ARRAY to scalar value
 90111=Erreur lors de l'accès à la table liée à l'aide de l'instruction SQL {0}, cause: {1}
 90112=Ligne non trouvée lors de la tentative de suppression à partir de l'index {0}
 90113=Paramétrage de connexion non pris en charge {0}

h2/src/main/org/h2/res/_messages_ja.prop

@@ -140,6 +140,7 @@
 90107={1} が依存しているため、{0} をドロップすることはできません
 90108=メモリが不足しています
 90109=ビュー {0} は無効です: {1}
+90110=#Comparing ARRAY to scalar value
 90111=SQLステートメント {0} による結合テーブルアクセスエラー
 90112=インデックス {0} から削除を試みましたが、行が見つかりません
 90113=未サポートの接続設定 {0}

h2/src/main/org/h2/res/_messages_pl.prop

@@ -140,6 +140,7 @@
 90107=Nie można skasować {0} ponieważ zależy od {1}
 90108=Brak pamięci.
 90109=Widok {0} jest nieprawidłowy
+90110=#Comparing ARRAY to scalar value
 90111=Błąd dostępu do tabeli skrzyżowań przy pomocy zapytania SQL {0}, błąd: {1}
 90112=Rekord nie znaleziony przy probie kasowania z indeksu {0}
 90113=Nie wspierana opcja połączenia {0}

h2/src/main/org/h2/res/_messages_pt_br.prop

@@ -140,6 +140,7 @@
 90107=Não pode apagar {0} por que depende de {1}
 90108=#Out of memory.
 90109=Vista {0} é inválida: {1}
+90110=#Comparing ARRAY to scalar value
 90111=Erro ao acessar a tabela lincada com a instrução SQL {0}, causa: {1}
 90112=A linha não foi encontrada ao tentar eliminar apartir do índice {0}
 90113=Não suporta a definição de conecção {0}

h2/src/main/org/h2/res/_messages_ru.prop

@@ -140,6 +140,7 @@
 90107=Невозможно удалить {0}, пока существует зависимый объект {1}
 90108=Ошибка нехватки памяти
 90109=Представление {0} содержит ошибки: {1}
+90110=#Comparing ARRAY to scalar value
 90111=Ошибка при обращении к линкованной таблице SQL запросом {0}, причина: {1}
 90112=Запись не найдена при удалении из индекса {0}
 90113=Неподдерживаемая опция соединения {0}

h2/src/main/org/h2/res/_messages_sk.prop

@@ -140,6 +140,7 @@
 90107=Nemôžem zmazať {0} lebo {1} zavisí na {0}
 90108=Nedostatok pamäte.
 90109=Pohľad (view) {0} je nesprávny: {1}
+90110=#Comparing ARRAY to scalar value
 90111=Chyba prístupu k linkovanej tabuľke SQL príkazom {0}, dôvod: {1}
 90112=Riadok nenájdený pri pokuse o vymazanie cez index {0}
 90113=Nepodporované nastavenie spojenia {0}

h2/src/main/org/h2/res/_messages_zh_cn.prop

@@ -140,6 +140,7 @@
 90107=不能删除 {0} ，因为 {1} 依赖着它
 90108=内存不足.
 90109=视图 {0} 无效: {1}
+90110=#Comparing ARRAY to scalar value
 90111=SQL语句访问表连接错误 {0}, 原因: {1}
 90112=尝试从索引中删除 {0}的时候找不到行
 90113=不支持的连接设置 {0}

h2/src/test/org/h2/test/scripts/TestScript.java

@@ -19,7 +19,6 @@ import java.sql.SQLException;
 import java.sql.Statement;
 import java.util.ArrayList;
 import java.util.Random;
-
 import org.h2.engine.SysProperties;
 import org.h2.test.TestAll;
 import org.h2.test.TestBase;
@@ -108,7 +107,8 @@ public class TestScript extends TestBase {
                 "dropSchema" }) {
             testScript("ddl/" + s + ".sql");
         }
-        for (String s : new String[] { "insertIgnore", "mergeUsing", "script", "with" }) {
+        for (String s : new String[] { "error_reporting", "insertIgnore",
+                "mergeUsing", "script", "with" }) {
             testScript("dml/" + s + ".sql");
         }
         for (String s : new String[] { "avg", "bit-and", "bit-or", "count",

h2/src/test/org/h2/test/scripts/dml/error_reporting.sql

+-- Copyright 2004-2018 H2 Group. Multiple-Licensed under the MPL 2.0,
+-- and the EPL 1.0 (http://h2database.com/html/license.html).
+-- Initial Developer: H2 Group
+--
+
+CREATE TABLE test (id INT NOT NULL, name VARCHAR);
+> ok
+
+select * from test where id = (1, 2);
+> exception
+
+drop table test;
+> ok
\ No newline at end of file