feat: escape column names

[Sekhmet]

Summary

Escape column names in queries so reserved keywords can be used as columns.

Depends on #159

Test plan

Apply this diff in sx-api

diff --git a/src/schema.gql b/src/schema.gql
index 978b787..49d5ff5 100644
--- a/src/schema.gql
+++ b/src/schema.gql
@@ -25,7 +25,7 @@ type Proposal {
   id: String!
   proposal_id: Int
   space: Space
-  author: User
+  from: User
   execution_hash: String
   metadata_uri: String
   title: Text
diff --git a/src/writer.ts b/src/writer.ts
index ab167a9..e79e085 100644
--- a/src/writer.ts
+++ b/src/writer.ts
@@ -74,7 +74,7 @@ export async function handlePropose({ block, tx, event, mysql }) {
     id: `${space}/${proposal}`,
     proposal_id: proposal,
     space,
-    author,
+    from: author,
     execution_hash: data.execution_hash,
     metadata_uri: metadataUri,
     title,

Run this query:

{
  proposals(where: {from: "0x556B14CbdA79A36dC33FcD461a04A5BCb5dC2A71"}) {
    id
    from {
      id
    }
  }
}

[bonustrack]

utACK