feat: don't use temp tables so that we can use multiple connections

uwdata · Oct 23, 2024 · be9f288 · be9f288
1 parent b0f3e09
commit be9f288
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Showing 33 changed files with 43 additions and 44 deletions.
diff --git a/dev/bundle.html b/dev/bundle.html
@@ -38,7 +38,7 @@
   setConnector();
 
   const queries = [
-    `CREATE TEMP TABLE IF NOT EXISTS flights AS SELECT * FROM read_parquet('data/flights-200k.parquet')`,
+    `CREATE TABLE IF NOT EXISTS flights AS SELECT * FROM read_parquet('data/flights-200k.parquet')`,
     `SELECT count(*) FROM "flights"`
   ]
 

diff --git a/dev/query/index.html b/dev/query/index.html
@@ -59,7 +59,7 @@
     } else {
       await coordinator().exec(
         `DROP TABLE IF EXISTS ${tableName};
-        CREATE TEMP TABLE ${tableName} AS ${input.value}`
+        CREATE TABLE ${tableName} AS ${input.value}`
       );
       coordinator.clear({ catalog: true });
       output.replaceChildren(vg.table({ from: tableName, height: 500 }));

diff --git a/docs/api/sql/data-loading.md b/docs/api/sql/data-loading.md
@@ -27,7 +27,7 @@ The supported _options_ are:
 
 ``` js
 // Loads file.csv into the table "table1" with default options:
-// CREATE TEMP TABLE IF NOT EXISTS table1 AS
+// CREATE TABLE IF NOT EXISTS table1 AS
 //   SELECT *
 //   FROM read_csv('file.csv', auto_detect=true, sample_size=-1)
 loadCSV("table1", "file.csv");
@@ -51,7 +51,7 @@ The supported _options_ are:
 
 ``` js
 // Loads file.json into the table "table1" with default options:
-// CREATE TEMP TABLE IF NOT EXISTS table1 AS
+// CREATE TABLE IF NOT EXISTS table1 AS
 //   SELECT *
 //   FROM read_json('file.json', auto_detect=true, json_format='auto')
 loadJSON("table1", "file.json");
@@ -75,7 +75,7 @@ The supported _options_ are:
 
 ```js
 // Load named columns from a parquet file, filtered upon load:
-// CREATE TEMP TABLE IF NOT EXISTS table1 AS
+// CREATE TABLE IF NOT EXISTS table1 AS
 //   SELECT foo, bar, value
 //   FROM read_parquet('file.parquet')
 //   WHERE value > 1
@@ -99,7 +99,7 @@ The supported _options_ are:
 - _replace_: A boolean flag (default `false`) indicating that the file contents should replace any existing table or view with the same name. The default behavior is to do nothing if a name conflict exists.
 
 ``` js
-// CREATE TEMP TABLE IF NOT EXISTS table3 AS
+// CREATE TABLE IF NOT EXISTS table3 AS
 //   (SELECT 1 AS "foo", 2 AS "bar") UNION ALL
 //   (SELECT 3 AS "foo", 4 AS "bar") UNION ALL ...
 const q = loadObjects("table3", [
@@ -128,7 +128,7 @@ The supported _options_ are:
 
 ``` js
 // Loads us-states.json into the table "table1":
-// CREATE TEMP TABLE IF NOT EXISTS table1 AS
+// CREATE TABLE IF NOT EXISTS table1 AS
 //   SELECT *
 //   FROM st_read('us-states.json', layer="states")
 loadSpatial("table1", "us-states.json", "states");

diff --git a/docs/examples/weather.md b/docs/examples/weather.md
@@ -5,7 +5,7 @@
 
 # Seattle Weather
 
-An interactive view of Seattle’s weather, including maximum temperature, amount of precipitation, and type of weather. By dragging on the scatter plot, you can see the proportion of days in that range that have sun, fog, drizzle, rain, or snow.
+An interactive view of Seattle's weather, including maximum temperature, amount of precipitation, and type of weather. By dragging on the scatter plot, you can see the proportion of days in that range that have sun, fog, drizzle, rain, or snow.
 
 <Example spec="/specs/yaml/weather.yaml" />
 

diff --git a/docs/public/specs/esm/airline-travelers.js b/docs/public/specs/esm/airline-travelers.js
@@ -2,7 +2,7 @@ import * as vg from "@uwdata/vgplot";
 
 await vg.coordinator().exec([
   vg.loadParquet("travelers", "data/travelers.parquet"),
-  `CREATE TEMP TABLE IF NOT EXISTS endpoint AS SELECT * FROM travelers ORDER BY date DESC LIMIT 1`
+  `CREATE TABLE IF NOT EXISTS endpoint AS SELECT * FROM travelers ORDER BY date DESC LIMIT 1`
 ]);
 
 export default vg.plot(

diff --git a/docs/public/specs/esm/flights-10m.js b/docs/public/specs/esm/flights-10m.js
@@ -1,7 +1,7 @@
 import * as vg from "@uwdata/vgplot";
 
 await vg.coordinator().exec([
-  `CREATE TEMP TABLE IF NOT EXISTS flights10m AS SELECT GREATEST(-60, LEAST(ARR_DELAY, 180))::DOUBLE AS delay, DISTANCE AS distance, DEP_TIME AS time FROM 'https://idl.uw.edu/mosaic-datasets/data/flights-10m.parquet'`
+  `CREATE TABLE IF NOT EXISTS flights10m AS SELECT GREATEST(-60, LEAST(ARR_DELAY, 180))::DOUBLE AS delay, DISTANCE AS distance, DEP_TIME AS time FROM 'https://idl.uw.edu/mosaic-datasets/data/flights-10m.parquet'`
 ]);
 
 const $brush = vg.Selection.crossfilter();

diff --git a/docs/public/specs/esm/gaia.js b/docs/public/specs/esm/gaia.js
@@ -1,7 +1,7 @@
 import * as vg from "@uwdata/vgplot";
 
 await vg.coordinator().exec([
-  `CREATE TEMP TABLE IF NOT EXISTS gaia AS -- compute u and v with natural earth projection
+  `CREATE TABLE IF NOT EXISTS gaia AS -- compute u and v with natural earth projection
 WITH prep AS (
   SELECT
     radians((-l + 540) % 360 - 180) AS lambda,

diff --git a/docs/public/specs/esm/linear-regression-10m.js b/docs/public/specs/esm/linear-regression-10m.js
@@ -1,7 +1,7 @@
 import * as vg from "@uwdata/vgplot";
 
 await vg.coordinator().exec([
-  `CREATE TEMP TABLE IF NOT EXISTS flights10m AS SELECT GREATEST(-60, LEAST(ARR_DELAY, 180))::DOUBLE AS delay, DISTANCE AS distance, DEP_TIME AS time FROM 'https://idl.uw.edu/mosaic-datasets/data/flights-10m.parquet'`
+  `CREATE TABLE IF NOT EXISTS flights10m AS SELECT GREATEST(-60, LEAST(ARR_DELAY, 180))::DOUBLE AS delay, DISTANCE AS distance, DEP_TIME AS time FROM 'https://idl.uw.edu/mosaic-datasets/data/flights-10m.parquet'`
 ]);
 
 const $query = vg.Selection.intersect();

diff --git a/docs/public/specs/esm/normalize.js b/docs/public/specs/esm/normalize.js
@@ -2,7 +2,7 @@ import * as vg from "@uwdata/vgplot";
 
 await vg.coordinator().exec([
   vg.loadParquet("stocks", "data/stocks.parquet"),
-  `CREATE TEMP TABLE IF NOT EXISTS labels AS SELECT MAX(Date) as Date, ARGMAX(Close, Date) AS Close, Symbol FROM stocks GROUP BY Symbol`
+  `CREATE TABLE IF NOT EXISTS labels AS SELECT MAX(Date) as Date, ARGMAX(Close, Date) AS Close, Symbol FROM stocks GROUP BY Symbol`
 ]);
 
 const $point = vg.Param.value(new Date("2013-05-13"));

diff --git a/docs/public/specs/esm/nyc-taxi-rides.js b/docs/public/specs/esm/nyc-taxi-rides.js
@@ -9,7 +9,7 @@ await vg.coordinator().exec([
   "ST_Transform(ST_Point(dropoff_latitude, dropoff_longitude), 'EPSG:4326', 'ESRI:102718') AS drop"
 ]
 }),
-  `CREATE TEMP TABLE IF NOT EXISTS trips AS SELECT
+  `CREATE TABLE IF NOT EXISTS trips AS SELECT
   (HOUR(datetime) + MINUTE(datetime)/60) AS time,
   ST_X(pick) AS px, ST_Y(pick) AS py,
   ST_X(drop) AS dx, ST_Y(drop) AS dy

diff --git a/docs/public/specs/esm/unemployment.js b/docs/public/specs/esm/unemployment.js
@@ -4,7 +4,7 @@ await vg.coordinator().exec([
   vg.loadExtension("spatial"),
   vg.loadSpatial("counties", "data/us-counties-10m.json", {layer: "counties"}),
   vg.loadParquet("rates", "data/us-county-unemployment.parquet"),
-  `CREATE TEMP TABLE IF NOT EXISTS combined AS SELECT a.geom AS geom, b.rate AS rate FROM counties AS a, rates AS b WHERE a.id = b.id`
+  `CREATE TABLE IF NOT EXISTS combined AS SELECT a.geom AS geom, b.rate AS rate FROM counties AS a, rates AS b WHERE a.id = b.id`
 ]);
 
 export default vg.vconcat(

diff --git a/docs/public/specs/json/weather.json b/docs/public/specs/json/weather.json
@@ -1,7 +1,7 @@
 {
   "meta": {
     "title": "Seattle Weather",
-    "description": "An interactive view of Seattle’s weather, including maximum temperature, amount of precipitation, and type of weather. By dragging on the scatter plot, you can see the proportion of days in that range that have sun, fog, drizzle, rain, or snow.\n",
+    "description": "An interactive view of Seattle's weather, including maximum temperature, amount of precipitation, and type of weather. By dragging on the scatter plot, you can see the proportion of days in that range that have sun, fog, drizzle, rain, or snow.\n",
     "credit": "Based on a [Vega-Lite/Altair example](https://vega.github.io/vega-lite/examples/interactive_seattle_weather.html) by Jake Vanderplas."
   },
   "data": {

diff --git a/docs/public/specs/yaml/weather.yaml b/docs/public/specs/yaml/weather.yaml
@@ -1,7 +1,7 @@
 meta:
   title: Seattle Weather
   description: >
-    An interactive view of Seattle’s weather, including maximum temperature, amount of precipitation, and type of weather.
+    An interactive view of Seattle's weather, including maximum temperature, amount of precipitation, and type of weather.
     By dragging on the scatter plot, you can see the proportion of days in that range that have sun, fog, drizzle, rain, or snow.
   credit: Based on a [Vega-Lite/Altair example](https://vega.github.io/vega-lite/examples/interactive_seattle_weather.html) by Jake Vanderplas.
 data:

diff --git a/docs/sql/index.md b/docs/sql/index.md
@@ -144,13 +144,13 @@ Data loading helpers generate query strings for loading data from external CSV,
 import { loadCSV, loadParquet } from "@uwdata/mosaic-sql";
 
 // Loads file.csv into the table "table1" with default options:
-// CREATE TEMP TABLE IF NOT EXISTS table1 AS
+// CREATE TABLE IF NOT EXISTS table1 AS
 //   SELECT *
 //   FROM read_csv('file.csv', auto_detect=true, sample_size=-1)
 const q1 = loadCSV("table1", "file.csv");
 
 // Load named columns from a parquet file, filtered upon load:
-// CREATE TEMP TABLE IF NOT EXISTS table2 AS
+// CREATE TABLE IF NOT EXISTS table2 AS
 //   SELECT foo, bar, value
 //   FROM read_parquet('file.parquet')
 //   WHERE value > 1
@@ -165,7 +165,7 @@ Meanwhile, the `loadObjects` method takes an array of JavaScript objects and gen
 ``` js
 import { loadObjects } from "@uwdata/mosaic-sql";
 
-// CREATE TEMP TABLE IF NOT EXISTS table3 AS
+// CREATE TABLE IF NOT EXISTS table3 AS
 //   (SELECT 1 AS "foo", 2 AS "bar") UNION ALL
 //   (SELECT 3 AS "foo", 4 AS "bar") UNION ALL ...
 const q = loadObjects("table3", [

diff --git a/packages/duckdb-server-rust/src/app.rs b/packages/duckdb-server-rust/src/app.rs
@@ -42,7 +42,7 @@ async fn handle_post(
 
 pub fn app() -> Result<Router> {
     // Database and state setup
-    let db = ConnectionPool::new(":memory:", 1)?; // TODO: we can only use one connection since temp tables are scoped per connection
+    let db = ConnectionPool::new(":memory:", 10)?;
     let cache = lru::LruCache::new(1000.try_into()?);
 
     let state = Arc::new(AppState {

diff --git a/packages/duckdb-server-rust/src/bundle.rs b/packages/duckdb-server-rust/src/bundle.rs
@@ -117,11 +117,11 @@ pub async fn load(
     }
     drop(cache_lock);
 
-    // Load precomputed temp tables into the database
+    // Load precomputed tables into the database
     for table in &manifest.tables {
         let file = bundle_dir.join(format!("{table}.parquet"));
         db.execute(&format!(
-            "CREATE TEMP TABLE IF NOT EXISTS {} AS SELECT * FROM '{}'",
+            "CREATE TABLE IF NOT EXISTS {} AS SELECT * FROM '{}'",
             table,
             file.display()
         ))

diff --git a/packages/duckdb-server-rust/src/test.rs b/packages/duckdb-server-rust/src/test.rs
@@ -175,7 +175,7 @@ async fn create_and_load_bundle() -> Result<()> {
     let cache = &Mutex::new(lru::LruCache::new(10.try_into()?));
 
     let queries = vec![
-        Query {sql: r#"CREATE TEMP TABLE IF NOT EXISTS flights AS SELECT * FROM read_parquet("data/flights-200k.parquet")"#.to_string(), alias: None},
+        Query {sql: r#"CREATE TABLE IF NOT EXISTS flights AS SELECT * FROM read_parquet("data/flights-200k.parquet")"#.to_string(), alias: None},
         Query {sql: r#"SELECT count(*) FROM "flights""#.to_string(), alias: None},
     ];
 

diff --git a/packages/duckdb-server/pkg/bundle.py b/packages/duckdb-server/pkg/bundle.py
@@ -70,7 +70,7 @@ def load_bundle(con, cache, directory):
             data = f.read()
             cache[key] = ujson.loads(data) if json_file else data
 
-    # Load precomputed temp tables into the database
+    # Load precomputed tables into the database
     for table in manifest["tables"]:
         file = directory / f"{table}.parquet"
-        con.execute(f"CREATE TEMP TABLE IF NOT EXISTS {table} AS SELECT * FROM '{file}'")
+        con.execute(f"CREATE TABLE IF NOT EXISTS {table} AS SELECT * FROM '{file}'")
diff --git a/packages/duckdb-server/pkg/tests/test_bundle.py b/packages/duckdb-server/pkg/tests/test_bundle.py
@@ -15,7 +15,7 @@ def test_bundle(bundle_dir):
     con = duckdb.connect()
 
     queries = [
-        'CREATE TEMP TABLE IF NOT EXISTS flights AS SELECT * FROM read_parquet("data/flights-200k.parquet")',
+        'CREATE TABLE IF NOT EXISTS flights AS SELECT * FROM read_parquet("data/flights-200k.parquet")',
         'SELECT count(*) FROM "flights"',
     ]
 

diff --git a/packages/duckdb/src/load/bundle.js b/packages/duckdb/src/load/bundle.js
@@ -67,9 +67,9 @@ export async function loadBundle(db, cache, dir) {
     cache.set(key, json ? JSON.parse(data) : data);
   }
 
-  // load precomputed temp tables into the database
+  // load precomputed tables into the database
   for (const table of manifest.tables) {
     const file = path.resolve(dir, `${table}.parquet`);
-    await db.exec(`CREATE TEMP TABLE IF NOT EXISTS ${table} AS SELECT * FROM '${file}'`);
+    await db.exec(`CREATE TABLE IF NOT EXISTS ${table} AS SELECT * FROM '${file}'`);
   }
 }
diff --git a/packages/duckdb/test/duckdb.test.js b/packages/duckdb/test/duckdb.test.js
@@ -6,7 +6,7 @@ import { loadJSON } from '../src/index.js';
 describe('DuckDB', () => {
   beforeAll(async () => {
     const file = path.resolve(__dirname, '../../../data/penguins.csv');
-    await db.exec(`CREATE TEMP TABLE penguins AS SELECT * FROM '${file}'`);
+    await db.exec(`CREATE TABLE penguins AS SELECT * FROM '${file}'`);
   });
 
   afterAll(async () => {

diff --git a/packages/sql/src/load/create.js b/packages/sql/src/load/create.js
@@ -1,6 +1,6 @@
 export function create(name, query, {
   replace = false,
-  temp = true,
+  temp = false,
   view = false
 } = {}) {
   return 'CREATE'

diff --git a/packages/sql/test/load.test.js b/packages/sql/test/load.test.js
@@ -8,13 +8,12 @@ describe('loadCSV', () => {
       where: 'colX > 5'
     };
     expect(loadCSV('table', 'data.csv', base)).toBe(
-      `CREATE TEMP TABLE IF NOT EXISTS table AS SELECT colA, colB FROM read_csv('data.csv', auto_detect=true, sample_size=-1) WHERE colX > 5`
+      `CREATE TABLE IF NOT EXISTS table AS SELECT colA, colB FROM read_csv('data.csv', auto_detect=true, sample_size=-1) WHERE colX > 5`
     );
 
     const ext = {
       ...base,
       view: true,
-      temp: false,
       replace: true
     };
     expect(loadCSV('table', 'data.csv', ext)).toBe(
@@ -33,7 +32,7 @@ describe('loadCSV', () => {
       skip: 2
     };
     expect(loadCSV('table', 'data.csv', opt)).toBe(
-      `CREATE TEMP TABLE IF NOT EXISTS table AS SELECT * FROM read_csv('data.csv', auto_detect=false, sample_size=-1, all_varchar=true, columns={'line': 'VARCHAR'}, force_not_null=['line'], new_line='\\n', header=false, skip=2)`
+      `CREATE TABLE IF NOT EXISTS table AS SELECT * FROM read_csv('data.csv', auto_detect=false, sample_size=-1, all_varchar=true, columns={'line': 'VARCHAR'}, force_not_null=['line'], new_line='\\n', header=false, skip=2)`
     );
   });
 });
diff --git a/specs/esm/airline-travelers.js b/specs/esm/airline-travelers.js
@@ -2,7 +2,7 @@ import * as vg from "@uwdata/vgplot";
 
 await vg.coordinator().exec([
   vg.loadParquet("travelers", "data/travelers.parquet"),
-  `CREATE TEMP TABLE IF NOT EXISTS endpoint AS SELECT * FROM travelers ORDER BY date DESC LIMIT 1`
+  `CREATE TABLE IF NOT EXISTS endpoint AS SELECT * FROM travelers ORDER BY date DESC LIMIT 1`
 ]);
 
 export default vg.plot(

diff --git a/specs/esm/flights-10m.js b/specs/esm/flights-10m.js
@@ -1,7 +1,7 @@
 import * as vg from "@uwdata/vgplot";
 
 await vg.coordinator().exec([
-  `CREATE TEMP TABLE IF NOT EXISTS flights10m AS SELECT GREATEST(-60, LEAST(ARR_DELAY, 180))::DOUBLE AS delay, DISTANCE AS distance, DEP_TIME AS time FROM 'https://idl.uw.edu/mosaic-datasets/data/flights-10m.parquet'`
+  `CREATE TABLE IF NOT EXISTS flights10m AS SELECT GREATEST(-60, LEAST(ARR_DELAY, 180))::DOUBLE AS delay, DISTANCE AS distance, DEP_TIME AS time FROM 'https://idl.uw.edu/mosaic-datasets/data/flights-10m.parquet'`
 ]);
 
 const $brush = vg.Selection.crossfilter();

diff --git a/specs/esm/gaia.js b/specs/esm/gaia.js
@@ -1,7 +1,7 @@
 import * as vg from "@uwdata/vgplot";
 
 await vg.coordinator().exec([
-  `CREATE TEMP TABLE IF NOT EXISTS gaia AS -- compute u and v with natural earth projection
+  `CREATE TABLE IF NOT EXISTS gaia AS -- compute u and v with natural earth projection
 WITH prep AS (
   SELECT
     radians((-l + 540) % 360 - 180) AS lambda,

diff --git a/specs/esm/linear-regression-10m.js b/specs/esm/linear-regression-10m.js
@@ -1,7 +1,7 @@
 import * as vg from "@uwdata/vgplot";
 
 await vg.coordinator().exec([
-  `CREATE TEMP TABLE IF NOT EXISTS flights10m AS SELECT GREATEST(-60, LEAST(ARR_DELAY, 180))::DOUBLE AS delay, DISTANCE AS distance, DEP_TIME AS time FROM 'https://idl.uw.edu/mosaic-datasets/data/flights-10m.parquet'`
+  `CREATE TABLE IF NOT EXISTS flights10m AS SELECT GREATEST(-60, LEAST(ARR_DELAY, 180))::DOUBLE AS delay, DISTANCE AS distance, DEP_TIME AS time FROM 'https://idl.uw.edu/mosaic-datasets/data/flights-10m.parquet'`
 ]);
 
 const $query = vg.Selection.intersect();

diff --git a/specs/esm/normalize.js b/specs/esm/normalize.js
@@ -2,7 +2,7 @@ import * as vg from "@uwdata/vgplot";
 
 await vg.coordinator().exec([
   vg.loadParquet("stocks", "data/stocks.parquet"),
-  `CREATE TEMP TABLE IF NOT EXISTS labels AS SELECT MAX(Date) as Date, ARGMAX(Close, Date) AS Close, Symbol FROM stocks GROUP BY Symbol`
+  `CREATE TABLE IF NOT EXISTS labels AS SELECT MAX(Date) as Date, ARGMAX(Close, Date) AS Close, Symbol FROM stocks GROUP BY Symbol`
 ]);
 
 const $point = vg.Param.value(new Date("2013-05-13"));

diff --git a/specs/esm/nyc-taxi-rides.js b/specs/esm/nyc-taxi-rides.js
@@ -9,7 +9,7 @@ await vg.coordinator().exec([
   "ST_Transform(ST_Point(dropoff_latitude, dropoff_longitude), 'EPSG:4326', 'ESRI:102718') AS drop"
 ]
 }),
-  `CREATE TEMP TABLE IF NOT EXISTS trips AS SELECT
+  `CREATE TABLE IF NOT EXISTS trips AS SELECT
   (HOUR(datetime) + MINUTE(datetime)/60) AS time,
   ST_X(pick) AS px, ST_Y(pick) AS py,
   ST_X(drop) AS dx, ST_Y(drop) AS dy

diff --git a/specs/esm/unemployment.js b/specs/esm/unemployment.js
@@ -4,7 +4,7 @@ await vg.coordinator().exec([
   vg.loadExtension("spatial"),
   vg.loadSpatial("counties", "data/us-counties-10m.json", {layer: "counties"}),
   vg.loadParquet("rates", "data/us-county-unemployment.parquet"),
-  `CREATE TEMP TABLE IF NOT EXISTS combined AS SELECT a.geom AS geom, b.rate AS rate FROM counties AS a, rates AS b WHERE a.id = b.id`
+  `CREATE TABLE IF NOT EXISTS combined AS SELECT a.geom AS geom, b.rate AS rate FROM counties AS a, rates AS b WHERE a.id = b.id`
 ]);
 
 export default vg.vconcat(

diff --git a/specs/json/weather.json b/specs/json/weather.json
@@ -1,7 +1,7 @@
 {
   "meta": {
     "title": "Seattle Weather",
-    "description": "An interactive view of Seattle’s weather, including maximum temperature, amount of precipitation, and type of weather. By dragging on the scatter plot, you can see the proportion of days in that range that have sun, fog, drizzle, rain, or snow.\n",
+    "description": "An interactive view of Seattle's weather, including maximum temperature, amount of precipitation, and type of weather. By dragging on the scatter plot, you can see the proportion of days in that range that have sun, fog, drizzle, rain, or snow.\n",
     "credit": "Based on a [Vega-Lite/Altair example](https://vega.github.io/vega-lite/examples/interactive_seattle_weather.html) by Jake Vanderplas."
   },
   "data": {

diff --git a/specs/ts/weather.ts b/specs/ts/weather.ts
@@ -3,7 +3,7 @@ import { Spec } from '@uwdata/mosaic-spec';
 export const spec : Spec = {
   "meta": {
     "title": "Seattle Weather",
-    "description": "An interactive view of Seattle’s weather, including maximum temperature, amount of precipitation, and type of weather. By dragging on the scatter plot, you can see the proportion of days in that range that have sun, fog, drizzle, rain, or snow.\n",
+    "description": "An interactive view of Seattle's weather, including maximum temperature, amount of precipitation, and type of weather. By dragging on the scatter plot, you can see the proportion of days in that range that have sun, fog, drizzle, rain, or snow.\n",
     "credit": "Based on a [Vega-Lite/Altair example](https://vega.github.io/vega-lite/examples/interactive_seattle_weather.html) by Jake Vanderplas."
   },
   "data": {

diff --git a/specs/yaml/weather.yaml b/specs/yaml/weather.yaml
@@ -1,7 +1,7 @@
 meta:
   title: Seattle Weather
   description: >
-    An interactive view of Seattle’s weather, including maximum temperature, amount of precipitation, and type of weather.
+    An interactive view of Seattle's weather, including maximum temperature, amount of precipitation, and type of weather.
     By dragging on the scatter plot, you can see the proportion of days in that range that have sun, fog, drizzle, rain, or snow.
   credit: Based on a [Vega-Lite/Altair example](https://vega.github.io/vega-lite/examples/interactive_seattle_weather.html) by Jake Vanderplas.
 data: