Update duckdb index files

.gitattributes

@@ -55,3 +55,4 @@ saved_model/**/* filter=lfs diff=lfs merge=lfs -text
 *.webp filter=lfs diff=lfs merge=lfs -text
 kaxap--pg-wikiSQL/validation/index.duckdb filter=lfs diff=lfs merge=lfs -text
 kaxap--pg-wikiSQL/test/index.duckdb filter=lfs diff=lfs merge=lfs -text
+kaxap--pg-wikiSQL/train/index.duckdb filter=lfs diff=lfs merge=lfs -text

kaxap--pg-wikiSQL/train/index.duckdb

@@ -0,0 +1,3 @@
+version https://git-lfs.github.com/spec/v1
+oid sha256:aa1a5bec95f4e52dc7ac7f4dfdc9ac49b94112d309acdd8cc124bf4cca015861
+size 20983808