From 78e65b1d10f75a016a01ba620d7e45758ecb3c6d Mon Sep 17 00:00:00 2001
From: Warren He <w@oasislabs.com>
Date: Fri, 23 Jun 2023 17:05:20 -0700
Subject: [PATCH] storage: add chain.evm_tokens token_name index

---
 .../08_evm_tokens_name_index.up.sql           | 10 ++++++++
 storage/postgres/client.go                    | 25 ++++++++++++++++++-
 2 files changed, 34 insertions(+), 1 deletion(-)
 create mode 100644 storage/migrations/08_evm_tokens_name_index.up.sql

diff --git a/storage/migrations/08_evm_tokens_name_index.up.sql b/storage/migrations/08_evm_tokens_name_index.up.sql
new file mode 100644
index 000000000..2c6ab4eb0
--- /dev/null
+++ b/storage/migrations/08_evm_tokens_name_index.up.sql
@@ -0,0 +1,10 @@
+-- Add a indexes for evm_tokens token names and symbols for search.
+
+BEGIN;
+
+CREATE EXTENSION pg_trgm;
+
+CREATE INDEX ix_evm_tokens_name ON chain.evm_tokens USING GIST (token_name gist_trgm_ops);
+CREATE INDEX ix_evm_tokens_symbol ON chain.evm_tokens USING GIST (symbol gist_trgm_ops);
+
+COMMIT;
diff --git a/storage/postgres/client.go b/storage/postgres/client.go
index 24aaab846..a7c1f186c 100644
--- a/storage/postgres/client.go
+++ b/storage/postgres/client.go
@@ -250,9 +250,32 @@ func (c *Client) Wipe(ctx context.Context) error {
 		}
 	}
 
+	// list, then drop some extensions.
+	rows, err := c.Query(ctx, `
+		SELECT extname
+		FROM pg_extension
+	`)
+	if err != nil {
+		return fmt.Errorf("failed to list extensions: %w", err)
+	}
+	defer rows.Close()
+	for rows.Next() {
+		var extension string
+		if err = rows.Scan(&extension); err != nil {
+			return err
+		}
+		// This one was here when I got here.
+		if extension == "plpgsql" {
+			continue
+		}
+		if _, err = c.pool.Exec(ctx, fmt.Sprintf("DROP EXTENSION %s CASCADE", extension)); err != nil {
+			return err
+		}
+	}
+
 	// List, then drop all custom types.
 	// Query from https://stackoverflow.com/questions/3660787/how-to-list-custom-types-using-postgres-information-schema
-	rows, err := c.Query(ctx, `
+	rows, err = c.Query(ctx, `
 		SELECT      n.nspname as schema, t.typname as type
 		FROM        pg_type t
 		LEFT JOIN   pg_catalog.pg_namespace n ON n.oid = t.typnamespace