(shardingsphere) branch master updated: Refine MCP database dialect system schema fallback (#39049)

[zhangliang]

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terrymanu pushed a commit to branch master
in repository https://gitbox.apache.org/repos/asf/shardingsphere.git


The following commit(s) were added to refs/heads/master by this push:
     new 2e4bc504ed7 Refine MCP database dialect system schema fallback (#39049)
2e4bc504ed7 is described below

commit 2e4bc504ed792cee62ae56fbb511c11c5bbbf470
Author: Liang Zhang <zhangli...@apache.org>
AuthorDate: Wed Jul 8 15:00:13 2026 +0800

    Refine MCP database dialect system schema fallback (#39049)
---
 .../support/database/capability/MCPDatabaseDialect.java    | 14 +-------------
 1 file changed, 1 insertion(+), 13 deletions(-)

diff --git 
a/mcp/support/src/main/java/org/apache/shardingsphere/mcp/support/database/capability/MCPDatabaseDialect.java
 
b/mcp/support/src/main/java/org/apache/shardingsphere/mcp/support/database/capability/MCPDatabaseDialect.java
index 3357f634b33..01d33f9c59a 100644
--- 
a/mcp/support/src/main/java/org/apache/shardingsphere/mcp/support/database/capability/MCPDatabaseDialect.java
+++ 
b/mcp/support/src/main/java/org/apache/shardingsphere/mcp/support/database/capability/MCPDatabaseDialect.java
@@ -183,25 +183,13 @@ public final class MCPDatabaseDialect {
     
     private Collection<String> getSystemSchemas() {
         Collection<String> optionSystemSchemas = 
option.map(MCPDatabaseCapabilityOption::getSystemSchemas).orElseGet(List::of);
-        return findDialectSystemSchemas().filter(each -> 
optionSystemSchemas.isEmpty() || containsSameSystemSchemas(each, 
optionSystemSchemas)).orElse(optionSystemSchemas);
+        return optionSystemSchemas.isEmpty() ? 
findDialectSystemSchemas().orElse(optionSystemSchemas) : optionSystemSchemas;
     }
     
     private Optional<Collection<String>> findDialectSystemSchemas() {
         return 
systemDatabase.map(SystemDatabase::getSystemSchemas).filter(each -> 
!each.isEmpty());
     }
     
-    private static boolean containsSameSystemSchemas(final Collection<String> 
systemSchemas, final Collection<String> expectedSystemSchemas) {
-        if (systemSchemas.size() != expectedSystemSchemas.size()) {
-            return false;
-        }
-        for (String each : systemSchemas) {
-            if (!containsSystemSchema(expectedSystemSchemas, each)) {
-                return false;
-            }
-        }
-        return true;
-    }
-    
     private static boolean containsSystemSchema(final Collection<String> 
systemSchemas, final String schemaName) {
         for (String each : systemSchemas) {
             if (schemaName.equalsIgnoreCase(each)) {