diff --git a/Providers/FreeSql.Provider.Firebird/FirebirdAdo/FirebirdConnectionPool.cs b/Providers/FreeSql.Provider.Firebird/FirebirdAdo/FirebirdConnectionPool.cs
index 35ad5ed2..407b6175 100644
--- a/Providers/FreeSql.Provider.Firebird/FirebirdAdo/FirebirdConnectionPool.cs
+++ b/Providers/FreeSql.Provider.Firebird/FirebirdAdo/FirebirdConnectionPool.cs
@@ -64,7 +64,7 @@ namespace FreeSql.Firebird
             {
                 _connectionString = value ?? "";
 
-                var minPoolSize = 0;
+                var minPoolSize = 1;
                 var pattern = @"Min\s*pool\s*size\s*=\s*(\d+)";
                 var m = Regex.Match(_connectionString, pattern, RegexOptions.IgnoreCase);
                 if (m.Success)
diff --git a/Providers/FreeSql.Provider.Firebird/FirebirdCodeFirst.cs b/Providers/FreeSql.Provider.Firebird/FirebirdCodeFirst.cs
index 3c90965f..c04424a9 100644
--- a/Providers/FreeSql.Provider.Firebird/FirebirdCodeFirst.cs
+++ b/Providers/FreeSql.Provider.Firebird/FirebirdCodeFirst.cs
@@ -136,7 +136,7 @@ namespace FreeSql.Firebird
                         {
                             sb.Append("CREATE ");
                             if (uk.IsUnique) sb.Append("UNIQUE ");
-                            sb.Append("INDEX ").Append(_commonUtils.QuoteSqlName(uk.Name)).Append(" ON ").Append(createTableName).Append("(");
+                            sb.Append("INDEX ").Append(_commonUtils.QuoteSqlName(ReplaceIndexName(uk.Name, tbname))).Append(" ON ").Append(createTableName).Append("(");
                             foreach (var tbcol in uk.Columns)
                             {
                                 sb.Append(_commonUtils.QuoteSqlName(tbcol.Column.Attribute.Name));
diff --git a/Providers/FreeSql.Provider.MsAccess/MsAccessAdo/MsAccessConnectionPool.cs b/Providers/FreeSql.Provider.MsAccess/MsAccessAdo/MsAccessConnectionPool.cs
index 4bcc57a0..d0bf31bb 100644
--- a/Providers/FreeSql.Provider.MsAccess/MsAccessAdo/MsAccessConnectionPool.cs
+++ b/Providers/FreeSql.Provider.MsAccess/MsAccessAdo/MsAccessConnectionPool.cs
@@ -63,7 +63,7 @@ namespace FreeSql.MsAccess
             {
                 _connectionString = value ?? "";
 
-                var minPoolSize = 0;
+                var minPoolSize = 1;
                 var pattern = @"Min\s*pool\s*size\s*=\s*(\d+)";
                 var m = Regex.Match(_connectionString, pattern, RegexOptions.IgnoreCase);
                 if (m.Success)
diff --git a/Providers/FreeSql.Provider.Sqlite/SqliteAdo/SqliteConnectionPool.cs b/Providers/FreeSql.Provider.Sqlite/SqliteAdo/SqliteConnectionPool.cs
index 71502e04..9c762632 100644
--- a/Providers/FreeSql.Provider.Sqlite/SqliteAdo/SqliteConnectionPool.cs
+++ b/Providers/FreeSql.Provider.Sqlite/SqliteAdo/SqliteConnectionPool.cs
@@ -76,7 +76,7 @@ namespace FreeSql.Sqlite
             {
                 _connectionString = value ?? "";
 
-                var minPoolSize = 0;
+                var minPoolSize = 1;
                 var pattern = @"Min\s*pool\s*size\s*=\s*(\d+)";
                 var m = Regex.Match(_connectionString, pattern, RegexOptions.IgnoreCase);
                 if (m.Success)