fix!: add proof-of-sql-planner description && check for existing published crate before publishing (#760)

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# Rationale for this change
`proof-of-sql` and `proof-of-sql-parser` 0.94.0 have already been
released. Hence we made a few changes.
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 Add `NestedLoopJoinExec`.
 Closes #345.

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# What changes are included in this PR?
- check for existence of crate before publishing in CI
- add description to `proof-of-sql-planner` crate enabling its
publishing
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- Speed up `HashJoinExec`.
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Author: iajoiner

.github/workflows/release.yaml

@@ -28,6 +28,9 @@ jobs:
         uses: actions/setup-node@v3
         with:
           node-version: "20.x"
+      - name: Install cargo info
+        run: |
+          cargo install cargo-info
       - name: Semantic Release
         run: |
           npm install semantic-release

ci/publish.sh

@@ -14,6 +14,14 @@ fi
 sed -i 's/version = "*.*.*" # DO NOT CHANGE THIS LINE! This will be automatically updated/version = "'${NEW_VERSION}'"/' Cargo.toml
 sed -i 's/path = "[^"]*"/version = "'${NEW_VERSION}'"/g' Cargo.toml
 
-cargo publish -p proof-of-sql-parser --token ${CRATES_TOKEN}
-cargo publish -p proof-of-sql --token ${CRATES_TOKEN}
-cargo publish -p proof-of-sql-planner --token ${CRATES_TOKEN}
+CRATES=("proof-of-sql-parser" "proof-of-sql" "proof-of-sql-planner")
+
+for crate in "${CRATES[@]}"; do
+  echo "Attempting to see if ${crate}@${NEW_VERSION} is published already..." 
+  if cargo info "${crate}@${NEW_VERSION}" >/dev/null 2>&1; then
+    echo "The version ${NEW_VERSION} for ${crate} is already on crates.io. Skipping publish."
+  else
+    echo "${crate}@${NEW_VERSION} not found, publishing..."
+    cargo publish -p "${crate}" --token "${CRATES_TOKEN}"
+  fi
+done

crates/proof-of-sql-planner/Cargo.toml

@@ -1,11 +1,12 @@
 [package]
-name = "proof-of-sql-planner"
 publish = true
-edition.workspace = true
-exclude.workspace = true
-repository.workspace = true
-version.workspace = true
-license-file.workspace = true
+name = "proof-of-sql-planner"
+version = { workspace = true }
+edition = { workspace = true }
+repository = { workspace = true }
+description = "SQL query planner for proof-of-sql."
+exclude = { workspace = true }
+license-file = { workspace = true }
 
 [lib]
 crate-type = ["cdylib", "rlib"]