HHH-17520 Schema creation fails with interval second data type on PostgreSQL

Author: dreab8

hibernate-community-dialects/src/main/java/org/hibernate/community/dialect/CockroachLegacyDialect.java

@@ -1144,6 +1144,12 @@ public SQLExceptionConversionDelegate buildSQLExceptionConversionDelegate() {
 		};
 	}
 
+	@Override
+	public int getDefaultIntervalSecondScale() {
+		// The maximum scale for `interval second` is 6 unfortunately
+		return 6;
+	}
+
 // CockroachDB doesn't support this by default. See sql.multiple_modifications_of_table.enabled
 //
 //	@Override

hibernate-community-dialects/src/main/java/org/hibernate/community/dialect/PostgreSQLLegacyDialect.java

@@ -1460,4 +1460,10 @@ public String addSqlHintOrComment(String sql, QueryOptions queryOptions, boolean
 		}
 		return sql;
 	}
+
+	@Override
+	public int getDefaultIntervalSecondScale() {
+		// The maximum scale for `interval second` is 6 unfortunately
+		return 6;
+	}
 }

hibernate-core/src/main/java/org/hibernate/dialect/CockroachDialect.java

@@ -1138,6 +1138,11 @@ public String getQueryHintString(String query, List<String> hintList) {
 		return new CockroachDialectQueryHints(query, hintList).getQueryHintString();
 	}
 
+	@Override
+	public int getDefaultIntervalSecondScale() {
+		// The maximum scale for `interval second` is 6 unfortunately
+		return 6;
+	}
 
 
 // CockroachDB doesn't support this by default. See sql.multiple_modifications_of_table.enabled

hibernate-core/src/main/java/org/hibernate/dialect/Dialect.java

@@ -5391,4 +5391,17 @@ public DmlTargetColumnQualifierSupport getDmlTargetColumnQualifierSupport() {
 	public FunctionalDependencyAnalysisSupport getFunctionalDependencyAnalysisSupport() {
 		return FunctionalDependencyAnalysisSupportImpl.NONE;
 	}
+
+	/**
+	 * Resolves the default scale for a {@link SqlTypes.INTERVAL_SECOND} type code for the given column
+	 * <p>
+	 * Usually 9 (nanosecond) or 6 (microseconds).
+	 *
+	 * @return the default scale, in decimal digits,
+	 *         of the fractional seconds field
+	 */
+	public int getDefaultIntervalSecondScale(){
+		// The default scale necessary is 9 i.e. nanosecond resolution
+		return 9;
+	}
 }

hibernate-core/src/main/java/org/hibernate/dialect/PostgreSQLDialect.java

@@ -1541,4 +1541,10 @@ public String createMarker(int position, JdbcType jdbcType) {
 			return "$" + position;
 		}
 	}
+
+	@Override
+	public int getDefaultIntervalSecondScale() {
+		// The maximum scale for `interval second` is 6 unfortunately
+		return 6;
+	}
 }

hibernate-core/src/main/java/org/hibernate/type/descriptor/java/DurationJavaType.java

@@ -161,8 +161,7 @@ public int getDefaultSqlPrecision(Dialect dialect, JdbcType jdbcType) {
 	@Override
 	public int getDefaultSqlScale(Dialect dialect, JdbcType jdbcType) {
 		if ( jdbcType.getDdlTypeCode() == SqlTypes.INTERVAL_SECOND ) {
-			// The default scale necessary is 9 i.e. nanosecond resolution
-			return 9;
+			return dialect.getDefaultIntervalSecondScale();
 		}
 		else {
 			// For non-interval types, we use the type numeric(21)