diff --git a/src/main/java/io/github/linwancen/plugin/show/lang/base/BaseLangDoc.java b/src/main/java/io/github/linwancen/plugin/show/lang/base/BaseLangDoc.java
index 69bee60..0c9e2b9 100644
--- a/src/main/java/io/github/linwancen/plugin/show/lang/base/BaseLangDoc.java
+++ b/src/main/java/io/github/linwancen/plugin/show/lang/base/BaseLangDoc.java
@@ -174,7 +174,7 @@ public abstract class BaseLangDoc extends EditorLinePainter {
     }
 
     /**
-     * Override like Java/Kotlin
+     * Override like Java/Kotlin/Python
      */
     @Nullable
     protected <T extends SettingsInfo> String resolveDocPrint(@NotNull T lineInfo, @NotNull PsiElement resolve) {
diff --git a/src/main/java/io/github/linwancen/plugin/show/lang/base/DocFilter.java b/src/main/java/io/github/linwancen/plugin/show/lang/base/DocFilter.java
index a249a72..8748353 100644
--- a/src/main/java/io/github/linwancen/plugin/show/lang/base/DocFilter.java
+++ b/src/main/java/io/github/linwancen/plugin/show/lang/base/DocFilter.java
@@ -23,7 +23,9 @@ public class DocFilter {
             // **** xx  block body
             "|^ *\\*++ *+" +
             // #### xx  python and shell start
-            "|^ *#++ *+"
+            "|^ *#++ *+" +
+            // -- xx SQL
+            "|^ *--++ *+"
     );
 
     private static final Pattern LINE_SEPARATOR_PATTERN = Pattern.compile("[\r\n]");
@@ -33,7 +35,7 @@ public class DocFilter {
      * end with space
      */
     @NotNull
-    public static <T extends SettingsInfo> String cutDoc(String text, @NotNull T info, boolean deletePrefix) {
+    public static <T extends SettingsInfo> String cutDoc(@NotNull String text, @NotNull T info, boolean deletePrefix) {
         String[] split = LINE_SEPARATOR_PATTERN.split(text);
         int lineCount = 0;
         @NotNull StringBuilder sb = new StringBuilder();