@selfage/spanner_schema_update_cli
Version:
Update Spanner schema.
267 lines • 34.4 kB
JavaScript
;
Object.defineProperty(exports, "__esModule", { value: true });
exports.SchemaState = void 0;
exports.markSchemaImageUpdateDone = markSchemaImageUpdateDone;
exports.updateSchemaFromDdlFile = updateSchemaFromDdlFile;
exports.updateSchema = updateSchema;
const fs = require("fs");
const schema_ddl_1 = require("./schema_ddl");
const spanner_1 = require("@google-cloud/spanner");
const comparator_1 = require("@selfage/message/comparator");
const parser_1 = require("@selfage/message/parser");
const serializer_1 = require("@selfage/message/serializer");
var SchemaState;
(function (SchemaState) {
SchemaState[SchemaState["PENDING"] = 1] = "PENDING";
SchemaState[SchemaState["DONE"] = 2] = "DONE";
})(SchemaState || (exports.SchemaState = SchemaState = {}));
async function createSchemaImageTableIfNotExists(databaseAdminClient, projectId, instanceId, databaseId) {
let createSchemaImageTable = `
CREATE TABLE IF NOT EXISTS SchemaImage (
versionId FLOAT64 NOT NULL,
schema BYTES(MAX) NOT NULL,
state FLOAT64 NOT NULL,
) PRIMARY KEY(versionId)`;
let [operation] = await databaseAdminClient.updateDatabaseDdl({
database: databaseAdminClient.databasePath(projectId, instanceId, databaseId),
statements: [createSchemaImageTable],
});
console.log(`Waiting for creation of table SchemaImage to complete...`);
await operation.promise();
console.log(`Created table SchemaImage.`);
}
async function insertNewSchemaImage(databaseClient, versionId, schemaDdl) {
await databaseClient.runTransactionAsync(async (transction) => {
await transction.run({
sql: `INSERT SchemaImage (versionId, schema, state) VALUES (@versionId, @schema, @state)`,
params: {
versionId: spanner_1.Spanner.float(versionId),
schema: Buffer.from((0, serializer_1.serializeMessage)(schemaDdl, schema_ddl_1.SCHEMA_DDL).buffer),
state: spanner_1.Spanner.float(SchemaState.PENDING),
},
types: {
versionId: {
type: "float64",
},
schema: {
type: "bytes",
},
state: {
type: "float64",
},
},
});
await transction.commit();
console.log(`Inserted new schema with version ${versionId}.`);
});
}
async function insertNewSchemaDdlIfNotExists(databaseClient, newSchemaDdl) {
let [rows] = await databaseClient.run({
sql: `SELECT versionId, schema FROM SchemaImage ORDER BY versionId DESC LIMIT 1;`,
});
if (rows.length === 0) {
await insertNewSchemaImage(databaseClient, 1, newSchemaDdl);
return 1;
}
else {
let latestVersionId = rows[0].at(0).value + 0;
let latestSchemaDdl = (0, serializer_1.deserializeMessage)(rows[0].at(1).value, schema_ddl_1.SCHEMA_DDL);
if (!(0, comparator_1.equalMessage)(latestSchemaDdl, newSchemaDdl, schema_ddl_1.SCHEMA_DDL)) {
await insertNewSchemaImage(databaseClient, latestVersionId + 1, newSchemaDdl);
return latestVersionId + 1;
}
else {
return latestVersionId;
}
}
}
async function markSchemaImageUpdateDone(databaseClient, databaseId, versionId) {
await databaseClient.runTransactionAsync(async (transction) => {
await transction.run({
sql: `UPDATE SchemaImage SET state = @state WHERE versionId = @versionId`,
params: {
versionId: spanner_1.Spanner.float(versionId),
state: spanner_1.Spanner.float(SchemaState.DONE),
},
types: {
versionId: {
type: "float64",
},
state: {
type: "float64",
},
},
});
await transction.commit();
console.log(`Marked database ${databaseId} version ${versionId} update done.`);
});
}
async function updateSchemaFromDdlFile(projectId, instanceId, databaseId, ddlFile) {
let newSchemaDdl = (0, parser_1.parseMessage)(JSON.parse(fs.readFileSync(ddlFile).toString()), schema_ddl_1.SCHEMA_DDL);
await updateSchema(projectId, instanceId, databaseId, newSchemaDdl);
}
async function updateSchema(projectId, instanceId, databaseId, newSchemaDdl) {
let spanner = new spanner_1.Spanner({
projectId,
});
let databaseAdminClient = spanner.getDatabaseAdminClient();
await createSchemaImageTableIfNotExists(databaseAdminClient, projectId, instanceId, databaseId);
let instance = spanner.instance(instanceId);
let databaseClient = instance.database(databaseId);
let versionId = await insertNewSchemaDdlIfNotExists(databaseClient, newSchemaDdl);
let [rows] = await databaseClient.run({
sql: `
WITH
t AS (
SELECT
t.table_name AS table_name,
t.spanner_state AS table_spanner_state,
ARRAY_AGG(c.column_name) AS column_names,
ARRAY_AGG(c.spanner_state) AS column_spanner_states,
FROM
information_schema.tables AS t
JOIN
information_schema.columns AS c
ON
t.table_name = c.table_name
WHERE
t.table_catalog = ''
AND t.table_schema = ''
AND t.table_name != 'SchemaImage'
GROUP BY
1,
2),
i AS (
SELECT
t.table_name,
ARRAY_AGG(i.index_name) AS index_names,
ARRAY_AGG(i.index_state) AS index_states,
FROM
information_schema.tables AS t
JOIN
information_schema.indexes AS i
ON
t.table_name = i.table_name
WHERE
t.table_catalog = ''
AND t.table_schema = ''
AND t.table_name != 'SchemaImage'
AND i.index_type != 'PRIMARY_KEY'
GROUP BY
1)
SELECT
t.table_name,
t.table_spanner_state,
t.column_names,
t.column_spanner_states,
i.index_names,
i.index_states,
FROM
t
LEFT JOIN
i
ON
t.table_name = i.table_name;`,
});
let notCommittedErrors = new Array();
let createdTables = new Map();
for (let row of rows) {
let tableName = row.at(0).value;
let tableSpannerState = row.at(1).value;
if (tableSpannerState !== "COMMITTED") {
notCommittedErrors.push(`Table ${tableName} not committed yet. Current state: ${tableSpannerState}.`);
}
let columns = new Set();
for (let i = 0; i < row.at(2).value.length; i++) {
let columnName = row.at(2).value[i];
let columnSpannerState = row.at(3).value[i];
if (columnSpannerState !== "COMMITTED") {
notCommittedErrors.push(`Column ${tableName}.${columnName} not comitted yet. Current state: ${columnSpannerState}.`);
}
columns.add(columnName);
}
let indexes = new Set();
if (row.at(4).value) {
for (let i = 0; i < row.at(4).value.length; i++) {
let indexName = row.at(4).value[i];
let indexState = row.at(5).value[i];
if (indexState !== "READ_WRITE") {
notCommittedErrors.push(`Index ${indexName} is not ready yet. Current state: ${indexState}.`);
}
indexes.add(row.at(4).value[i]);
}
}
createdTables.set(tableName, {
name: tableName,
columns,
indexes,
});
}
if (notCommittedErrors.length > 0) {
throw new Error(`Give up updating schema due to existing tables/columns not committed yet.\n${notCommittedErrors.join("\n")}`);
}
let statements = new Array();
for (let table of newSchemaDdl.tables) {
let createdTable = createdTables.get(table.name);
if (!createdTable) {
statements.push(table.createTableDdl);
if (table.indexes) {
for (let index of table.indexes) {
statements.push(index.createIndexDdl);
}
}
}
else {
let addIndexesStatement = new Array();
if (table.indexes) {
for (let index of table.indexes) {
if (!createdTable.indexes.has(index.name)) {
addIndexesStatement.push(index.createIndexDdl);
}
else {
createdTable.indexes.delete(index.name);
}
}
}
// Drop indexes before dropping columns.
for (let excessiveIndex of createdTable.indexes) {
statements.push(`DROP INDEX ${excessiveIndex}`);
}
for (let column of table.columns) {
if (!createdTable.columns.has(column.name)) {
statements.push(column.addColumnDdl);
}
else {
createdTable.columns.delete(column.name);
}
}
for (let excessiveColumn of createdTable.columns) {
statements.push(`ALTER TABLE ${table.name} DROP COLUMN ${excessiveColumn}`);
}
// Wait until columns are added before adding indexes.
statements.push(...addIndexesStatement);
}
createdTables.delete(table.name);
}
for (let excessiveTable of createdTables.values()) {
for (let excessiveIndex of excessiveTable.indexes) {
statements.push(`DROP INDEX ${excessiveIndex}`);
}
statements.push(`DROP TABLE ${excessiveTable.name}`);
}
if (statements.length === 0) {
console.log(`Database ${databaseId} version ${versionId} already up-to-date.`);
}
else {
console.log(`Executing the following statements:\n${statements.join("\n")}`);
let [operation] = await databaseAdminClient.updateDatabaseDdl({
database: databaseAdminClient.databasePath(projectId, instanceId, databaseId),
statements,
});
console.log(`Waiting for updating database ${databaseId} to complete...`);
await operation.promise();
console.log(`Updated database ${databaseId} version ${versionId}.`);
await markSchemaImageUpdateDone(databaseClient, databaseId, versionId);
}
}
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fs = require(\"fs\");\nimport { SCHEMA_DDL, SchemaDdl } from \"./schema_ddl\";\nimport { Database, Spanner } from \"@google-cloud/spanner\";\nimport { DatabaseAdminClient } from \"@google-cloud/spanner/build/src/v1\";\nimport { equalMessage } from \"@selfage/message/comparator\";\nimport { parseMessage } from \"@selfage/message/parser\";\nimport {\n  deserializeMessage,\n  serializeMessage,\n} from \"@selfage/message/serializer\";\n\nexport enum SchemaState {\n  PENDING = 1,\n  DONE = 2,\n}\n\ninterface CreatedTable {\n  name: string;\n  columns: Set<string>;\n  indexes: Set<string>;\n}\n\nasync function createSchemaImageTableIfNotExists(\n  databaseAdminClient: DatabaseAdminClient,\n  projectId: string,\n  instanceId: string,\n  databaseId: string,\n): Promise<void> {\n  let createSchemaImageTable = `\n  CREATE TABLE IF NOT EXISTS SchemaImage (\n    versionId FLOAT64 NOT NULL,\n    schema BYTES(MAX) NOT NULL,\n    state FLOAT64 NOT NULL,\n  ) PRIMARY KEY(versionId)`;\n  let [operation] = await databaseAdminClient.updateDatabaseDdl({\n    database: databaseAdminClient.databasePath(\n      projectId,\n      instanceId,\n      databaseId,\n    ),\n    statements: [createSchemaImageTable],\n  });\n  console.log(`Waiting for creation of table SchemaImage to complete...`);\n  await operation.promise();\n  console.log(`Created table SchemaImage.`);\n}\n\nasync function insertNewSchemaImage(\n  databaseClient: Database,\n  versionId: number,\n  schemaDdl: SchemaDdl,\n): Promise<void> {\n  await databaseClient.runTransactionAsync(async (transction) => {\n    await transction.run({\n      sql: `INSERT SchemaImage (versionId, schema, state) VALUES (@versionId, @schema, @state)`,\n      params: {\n        versionId: Spanner.float(versionId),\n        schema: Buffer.from(serializeMessage(schemaDdl, SCHEMA_DDL).buffer),\n        state: Spanner.float(SchemaState.PENDING),\n      },\n      types: {\n        versionId: {\n          type: \"float64\",\n        },\n        schema: {\n          type: \"bytes\",\n        },\n        state: {\n          type: \"float64\",\n        },\n      },\n    });\n    await transction.commit();\n    console.log(`Inserted new schema with version ${versionId}.`);\n  });\n}\n\nasync function insertNewSchemaDdlIfNotExists(\n  databaseClient: Database,\n  newSchemaDdl: SchemaDdl,\n): Promise<number> {\n  let [rows] = await databaseClient.run({\n    sql: `SELECT versionId, schema FROM SchemaImage ORDER BY versionId DESC LIMIT 1;`,\n  });\n  if (rows.length === 0) {\n    await insertNewSchemaImage(databaseClient, 1, newSchemaDdl);\n    return 1;\n  } else {\n    let latestVersionId = rows[0].at(0).value + 0;\n    let latestSchemaDdl = deserializeMessage(rows[0].at(1).value, SCHEMA_DDL);\n    if (!equalMessage(latestSchemaDdl, newSchemaDdl, SCHEMA_DDL)) {\n      await insertNewSchemaImage(\n        databaseClient,\n        latestVersionId + 1,\n        newSchemaDdl,\n      );\n      return latestVersionId + 1;\n    } else {\n      return latestVersionId;\n    }\n  }\n}\n\nexport async function markSchemaImageUpdateDone(\n  databaseClient: Database,\n  databaseId: string,\n  versionId: number,\n): Promise<void> {\n  await databaseClient.runTransactionAsync(async (transction) => {\n    await transction.run({\n      sql: `UPDATE SchemaImage SET state = @state WHERE versionId = @versionId`,\n      params: {\n        versionId: Spanner.float(versionId),\n        state: Spanner.float(SchemaState.DONE),\n      },\n      types: {\n        versionId: {\n          type: \"float64\",\n        },\n        state: {\n          type: \"float64\",\n        },\n      },\n    });\n    await transction.commit();\n    console.log(\n      `Marked database ${databaseId} version ${versionId} update done.`,\n    );\n  });\n}\n\nexport async function updateSchemaFromDdlFile(\n  projectId: string,\n  instanceId: string,\n  databaseId: string,\n  ddlFile: string,\n): Promise<void> {\n  let newSchemaDdl = parseMessage(\n    JSON.parse(fs.readFileSync(ddlFile).toString()),\n    SCHEMA_DDL,\n  );\n  await updateSchema(projectId, instanceId, databaseId, newSchemaDdl);\n}\n\nexport async function updateSchema(\n  projectId: string,\n  instanceId: string,\n  databaseId: string,\n  newSchemaDdl: SchemaDdl,\n): Promise<void> {\n  let spanner = new Spanner({\n    projectId,\n  });\n  let databaseAdminClient = spanner.getDatabaseAdminClient();\n  await createSchemaImageTableIfNotExists(\n    databaseAdminClient,\n    projectId,\n    instanceId,\n    databaseId,\n  );\n\n  let instance = spanner.instance(instanceId);\n  let databaseClient = instance.database(databaseId);\n  let versionId = await insertNewSchemaDdlIfNotExists(\n    databaseClient,\n    newSchemaDdl,\n  );\n\n  let [rows] = await databaseClient.run({\n    sql: `\n      WITH\n        t AS (\n        SELECT\n          t.table_name AS table_name,\n          t.spanner_state AS table_spanner_state,\n          ARRAY_AGG(c.column_name) AS column_names,\n          ARRAY_AGG(c.spanner_state) AS column_spanner_states,\n        FROM\n          information_schema.tables AS t\n        JOIN\n          information_schema.columns AS c\n        ON\n          t.table_name = c.table_name\n        WHERE\n          t.table_catalog = ''\n          AND t.table_schema = ''\n          AND t.table_name != 'SchemaImage'\n        GROUP BY\n          1,\n          2),\n        i AS (\n        SELECT\n          t.table_name,\n          ARRAY_AGG(i.index_name) AS index_names,\n          ARRAY_AGG(i.index_state) AS index_states,\n        FROM\n          information_schema.tables AS t\n        JOIN\n          information_schema.indexes AS i\n        ON\n          t.table_name = i.table_name\n        WHERE\n          t.table_catalog = ''\n          AND t.table_schema = ''\n          AND t.table_name != 'SchemaImage'\n          AND i.index_type != 'PRIMARY_KEY'\n        GROUP BY\n          1)\n      SELECT\n        t.table_name,\n        t.table_spanner_state,\n        t.column_names,\n        t.column_spanner_states,\n        i.index_names,\n        i.index_states,\n      FROM\n        t\n      LEFT JOIN\n        i\n      ON\n        t.table_name = i.table_name;`,\n  });\n  let notCommittedErrors = new Array<string>();\n  let createdTables = new Map<string, CreatedTable>();\n  for (let row of rows) {\n    let tableName = row.at(0).value;\n    let tableSpannerState = row.at(1).value;\n    if (tableSpannerState !== \"COMMITTED\") {\n      notCommittedErrors.push(\n        `Table ${tableName} not committed yet. Current state: ${tableSpannerState}.`,\n      );\n    }\n\n    let columns = new Set<string>();\n    for (let i = 0; i < row.at(2).value.length; i++) {\n      let columnName = row.at(2).value[i];\n      let columnSpannerState = row.at(3).value[i];\n      if (columnSpannerState !== \"COMMITTED\") {\n        notCommittedErrors.push(\n          `Column ${tableName}.${columnName} not comitted yet. Current state: ${columnSpannerState}.`,\n        );\n      }\n      columns.add(columnName);\n    }\n\n    let indexes = new Set<string>();\n    if (row.at(4).value) {\n      for (let i = 0; i < row.at(4).value.length; i++) {\n        let indexName = row.at(4).value[i];\n        let indexState = row.at(5).value[i];\n        if (indexState !== \"READ_WRITE\") {\n          notCommittedErrors.push(\n            `Index ${indexName} is not ready yet. Current state: ${indexState}.`,\n          );\n        }\n        indexes.add(row.at(4).value[i]);\n      }\n    }\n    createdTables.set(tableName, {\n      name: tableName,\n      columns,\n      indexes,\n    });\n  }\n  if (notCommittedErrors.length > 0) {\n    throw new Error(\n      `Give up updating schema due to existing tables/columns not committed yet.\\n${notCommittedErrors.join(\"\\n\")}`,\n    );\n  }\n\n  let statements = new Array<string>();\n  for (let table of newSchemaDdl.tables) {\n    let createdTable = createdTables.get(table.name);\n    if (!createdTable) {\n      statements.push(table.createTableDdl);\n      if (table.indexes) {\n        for (let index of table.indexes) {\n          statements.push(index.createIndexDdl);\n        }\n      }\n    } else {\n      let addIndexesStatement = new Array<string>();\n      if (table.indexes) {\n        for (let index of table.indexes) {\n          if (!createdTable.indexes.has(index.name)) {\n            addIndexesStatement.push(index.createIndexDdl);\n          } else {\n            createdTable.indexes.delete(index.name);\n          }\n        }\n      }\n      // Drop indexes before dropping columns.\n      for (let excessiveIndex of createdTable.indexes) {\n        statements.push(`DROP INDEX ${excessiveIndex}`);\n      }\n\n      for (let column of table.columns) {\n        if (!createdTable.columns.has(column.name)) {\n          statements.push(column.addColumnDdl);\n        } else {\n          createdTable.columns.delete(column.name);\n        }\n      }\n      for (let excessiveColumn of createdTable.columns) {\n        statements.push(\n          `ALTER TABLE ${table.name} DROP COLUMN ${excessiveColumn}`,\n        );\n      }\n\n      // Wait until columns are added before adding indexes.\n      statements.push(...addIndexesStatement);\n    }\n    createdTables.delete(table.name);\n  }\n  for (let excessiveTable of createdTables.values()) {\n    for (let excessiveIndex of excessiveTable.indexes) {\n      statements.push(`DROP INDEX ${excessiveIndex}`);\n    }\n    statements.push(`DROP TABLE ${excessiveTable.name}`);\n  }\n\n  if (statements.length === 0) {\n    console.log(\n      `Database ${databaseId} version ${versionId} already up-to-date.`,\n    );\n  } else {\n    console.log(\n      `Executing the following statements:\\n${statements.join(\"\\n\")}`,\n    );\n    let [operation] = await databaseAdminClient.updateDatabaseDdl({\n      database: databaseAdminClient.databasePath(\n        projectId,\n        instanceId,\n        databaseId,\n      ),\n      statements,\n    });\n    console.log(`Waiting for updating database ${databaseId} to complete...`);\n    await operation.promise();\n    console.log(`Updated database ${databaseId} version ${versionId}.`);\n\n    await markSchemaImageUpdateDone(databaseClient, databaseId, versionId);\n  }\n}\n"]}