Fixed column length resolution for sharded tables (#37425)

* fix column length resolution for sharded tables

* ci trigger

Author: makssent

database/connector/dialect/firebird/src/main/java/org/apache/shardingsphere/database/connector/firebird/metadata/data/FirebirdSizeRegistry.java

@@ -87,7 +87,16 @@ public static OptionalInt findColumnSize(final String schemaName, final String t
 
     private static String buildTableKey(final String schemaName, final String tableName) {
         String schemaKey = null == schemaName ? "" : toKey(schemaName);
-        return schemaKey + "." + toKey(tableName);
+        String logicTable = trimToLogicTableName(tableName);
+        return schemaKey + "." + toKey(logicTable);
+    }
+    
+    private static String trimToLogicTableName(final String tableName) {
+        int end = tableName.length() - 1;
+        while (end >= 0 && !Character.isLetter(tableName.charAt(end))) {
+            end--;
+        }
+        return end < 0 ? tableName : tableName.substring(0, end + 1);
     }
 
     private static String toKey(final String value) {

proxy/frontend/dialect/firebird/src/main/java/org/apache/shardingsphere/proxy/frontend/firebird/command/query/statement/prepare/FirebirdPrepareStatementCommandExecutor.java

@@ -458,7 +458,7 @@ private void processColumn(final Collection<FirebirdReturnColumnPacket> describe
         String tableAliasString = null == tableAlias ? table.getName() : tableAlias.getValue();
         String columnAliasString = null == columnAlias ? column.getName() : columnAlias.getValue();
         String owner = connectionSession.getConnectionContext().getGrantee().getUsername();
-        Integer columnLength = resolveColumnLength(table, column);
+        Integer columnLength = (null != column && isDynamicLengthType(column.getDataType())) ? resolveColumnLength(table, column) : null;
         describeColumns.add(new FirebirdReturnColumnPacket(requestedItems, idx, table, column, tableAliasString, columnAliasString, owner, columnLength));
     }
 
@@ -469,4 +469,21 @@ private Integer resolveColumnLength(final ShardingSphereTable table, final Shard
         OptionalInt columnSize = FirebirdSizeRegistry.findColumnSize(connectionSession.getCurrentDatabaseName(), table.getName(), column.getName());
         return columnSize.isPresent() ? columnSize.getAsInt() : null;
     }
+    
+    private boolean isDynamicLengthType(final int dataType) {
+        switch (dataType) {
+            case Types.CHAR:
+            case Types.NCHAR:
+            case Types.VARCHAR:
+            case Types.NVARCHAR:
+            case Types.LONGVARCHAR:
+            case Types.LONGNVARCHAR:
+            case Types.BINARY:
+            case Types.VARBINARY:
+            case Types.LONGVARBINARY:
+                return true;
+            default:
+                return false;
+        }
+    }
 }