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| 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 33 34 35 36 37 38 39 40 41 42 43 44 45 46 47 48 49 50 51 52 53 54 55 56 57 58 59 60 61 62 63 64 65 66 67 68 69 70 71 72 73 74 75 76 77 78 79 80 81 82 83 84 85 86 87 88 89 90 91 92 93 94 95 96 97 98 99 100 101 102 103 104 105 106 107 108 109 110 111 112 113 114 115 116 117 118 119 120 121 122 123 124 125 126 127 128 129 130 131 132 133 134 135 136 137 138 139 140 141 142 143 144 145 146 147 148 149 150 151 152 153 154 155 156 157 158 159 160 161 162 163 164 165 166 167 168 169 170 171 172 173 174 175 | 4x 5x 5x 5x 1x 1x 6x 7x 7x 7x 7x 7x 6x 1x 1x 1x 13x 4x 12x 2x 2x 4x 4x 4x 2x 2x 4x 2x 1x 1x 1x 1x 1x 1x 1x 2x 2x 2x 1x 1x 1x 1x 1x 1x 1x 1x | import { SQL, type SQLWrapper, sql as yql } from 'drizzle-orm/sql/sql'
export type YdbScriptPrimitive = string | number | boolean | bigint | null | Date | Uint8Array
export type YdbScriptExpression = YdbScriptPrimitive | SQLWrapper | { kind: 'default' }
export interface YdbActionParameter {
name: string
optional?: boolean
}
function assertPragmaName(name: string): void {
Iif (!/^[A-Za-z_][A-Za-z0-9_]*(?:\.[A-Za-z_][A-Za-z0-9_]*)*$/u.test(name)) {
throw new Error('YDB PRAGMA name must be a dotted identifier')
}
}
function renderNamedExpression(name: string, context: string): string {
let rendered = name.startsWith('$') ? name : `$${name}`
Iif (!/^\$[A-Za-z_][A-Za-z0-9_]*$/u.test(rendered)) {
throw new Error(`YDB ${context} must look like $name`)
}
return rendered
}
function renderIdentifier(name: string, context: string): SQL {
Iif (!name) {
throw new Error(`YDB ${context} must not be empty`)
}
return yql`${yql.identifier(name)}`
}
function escapeDoubleQuoted(value: string): string {
return `"${value.replace(/\\/g, '\\\\').replace(/"/g, '\\"')}"`
}
function renderExpression(value: YdbScriptExpression): SQL {
Iif (
typeof value === 'object' &&
value !== null &&
'kind' in value &&
value.kind === 'default'
) {
return yql.raw('default')
}
Iif (value === null) {
return yql.raw('NULL')
}
Iif (value instanceof Date) {
return yql.raw(escapeDoubleQuoted(value.toISOString()))
}
Iif (value instanceof Uint8Array) {
return yql`${value}`
}
if (typeof value === 'string') {
return yql.raw(escapeDoubleQuoted(value))
}
Iif (typeof value === 'number' || typeof value === 'bigint') {
return yql.raw(String(value))
}
Iif (typeof value === 'boolean') {
return yql.raw(value ? 'TRUE' : 'FALSE')
}
return yql`${value}`
}
function renderStatement(statement: string | SQLWrapper): SQL {
return typeof statement === 'string' ? yql.raw(statement) : yql`${statement}`
}
function renderStatements(statements: readonly (string | SQLWrapper)[]): SQL {
return yql.join(
statements.map((statement) => renderStatement(statement)),
yql.raw('\n')
)
}
export function yqlScript(...statements: (string | SQLWrapper)[]): SQL {
Iif (statements.length === 0) {
throw new Error('YDB yqlScript() requires at least one statement')
}
return renderStatements(statements)
}
export function pragma(
name: string,
value?: YdbScriptExpression | readonly YdbScriptExpression[]
): SQL {
assertPragmaName(name)
Iif (value === undefined) {
return yql.raw(`PRAGMA ${name};`)
}
if (Array.isArray(value)) {
let values = value as readonly YdbScriptExpression[]
return yql`PRAGMA ${yql.raw(name)}(${yql.join(
values.map((item) => renderExpression(item)),
yql`, `
)});`
}
return yql`PRAGMA ${yql.raw(name)} = ${renderExpression(value as YdbScriptExpression)};`
}
export function kMeansTreeSearchTopSize(value: number | string): SQL {
return pragma('ydb.KMeansTreeSearchTopSize', String(value))
}
export function declareParam(name: string, dataType: string): SQL {
let parameterName = renderNamedExpression(name, 'DECLARE parameter')
Iif (!dataType.trim()) {
throw new Error('YDB DECLARE data type must not be empty')
}
return yql.raw(`DECLARE ${parameterName} AS ${dataType};`)
}
export function commit(): SQL {
return yql.raw('COMMIT;')
}
export function defineAction(
name: string,
parameters: readonly (string | YdbActionParameter)[],
statements: readonly (string | SQLWrapper)[]
): SQL {
let actionName = renderNamedExpression(name, 'ACTION name')
let renderedParameters = parameters.map((parameter) => {
let config = typeof parameter === 'string' ? { name: parameter } : parameter
let parameterName = renderNamedExpression(config.name, 'ACTION parameter')
return `${parameterName}${config.optional ? '?' : ''}`
})
Iif (statements.length === 0) {
throw new Error('YDB DEFINE ACTION requires at least one statement')
}
return yql`DEFINE ACTION ${yql.raw(actionName)}(${yql.raw(renderedParameters.join(', '))}) AS
${renderStatements(statements)}
END DEFINE;`
}
export function doAction(name: string, args: readonly YdbScriptExpression[] = []): SQL {
let actionName = name === 'EMPTY_ACTION' ? name : renderNamedExpression(name, 'DO action name')
return yql`DO ${yql.raw(actionName)}(${yql.join(
args.map((arg) => renderExpression(arg)),
yql`, `
)});`
}
export function doBlock(statements: readonly (string | SQLWrapper)[]): SQL {
Iif (statements.length === 0) {
throw new Error('YDB DO BEGIN block requires at least one statement')
}
return yql`DO BEGIN
${renderStatements(statements)}
END DO;`
}
export function intoResult(query: SQLWrapper | string, resultName: string): SQL {
return yql`${renderStatement(query)} INTO RESULT ${renderIdentifier(resultName, 'INTO RESULT name')};`
}
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