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387 lines
8.8 KiB
Go
387 lines
8.8 KiB
Go
// Copyright (c) 2015-2021 MinIO, Inc.
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//
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// This file is part of MinIO Object Storage stack
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//
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// This program is free software: you can redistribute it and/or modify
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// it under the terms of the GNU Affero General Public License as published by
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// the Free Software Foundation, either version 3 of the License, or
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// (at your option) any later version.
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//
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// This program is distributed in the hope that it will be useful
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// but WITHOUT ANY WARRANTY; without even the implied warranty of
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// MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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// GNU Affero General Public License for more details.
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//
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// You should have received a copy of the GNU Affero General Public License
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// along with this program. If not, see <http://www.gnu.org/licenses/>.
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package sql
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import (
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"bytes"
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"testing"
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"github.com/alecthomas/participle"
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"github.com/alecthomas/participle/lexer"
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)
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func TestJSONPathElement(t *testing.T) {
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p := participle.MustBuild(
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&JSONPathElement{},
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participle.Lexer(sqlLexer),
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participle.CaseInsensitive("Keyword"),
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participle.CaseInsensitive("Timeword"),
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)
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j := JSONPathElement{}
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cases := []string{
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// Key
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"['name']", ".name", `."name"`,
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// Index
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"[2]", "[0]", "[100]",
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// Object wilcard
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".*",
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// array wildcard
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"[*]",
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}
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for i, tc := range cases {
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err := p.ParseString(tc, &j)
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if err != nil {
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t.Fatalf("%d: %v", i, err)
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}
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// repr.Println(j, repr.Indent(" "), repr.OmitEmpty(true))
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}
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}
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func TestJSONPath(t *testing.T) {
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p := participle.MustBuild(
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&JSONPath{},
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participle.Lexer(sqlLexer),
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participle.CaseInsensitive("Keyword"),
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participle.CaseInsensitive("Timeword"),
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)
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j := JSONPath{}
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cases := []string{
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"S3Object",
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"S3Object.id",
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"S3Object.book.title",
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"S3Object.id[1]",
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"S3Object.id['abc']",
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"S3Object.id['ab']",
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"S3Object.words.*.id",
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"S3Object.words.name[*].val",
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"S3Object.words.name[*].val[*]",
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"S3Object.words.name[*].val.*",
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}
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for i, tc := range cases {
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err := p.ParseString(tc, &j)
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if err != nil {
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t.Fatalf("%d: %v", i, err)
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}
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// repr.Println(j, repr.Indent(" "), repr.OmitEmpty(true))
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}
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}
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func TestIdentifierParsing(t *testing.T) {
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p := participle.MustBuild(
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&Identifier{},
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participle.Lexer(sqlLexer),
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participle.CaseInsensitive("Keyword"),
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)
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id := Identifier{}
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validCases := []string{
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"a",
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"_a",
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"abc_a",
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"a2",
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`"abc"`,
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`"abc\a""ac"`,
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}
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for i, tc := range validCases {
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err := p.ParseString(tc, &id)
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if err != nil {
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t.Fatalf("%d: %v", i, err)
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}
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// repr.Println(id, repr.Indent(" "), repr.OmitEmpty(true))
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}
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invalidCases := []string{
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"+a",
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"-a",
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"1a",
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`"ab`,
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`abc"`,
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`aa""a`,
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`"a"a"`,
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}
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for i, tc := range invalidCases {
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err := p.ParseString(tc, &id)
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if err == nil {
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t.Fatalf("%d: %v", i, err)
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}
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// fmt.Println(tc, err)
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}
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}
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func TestLiteralStringParsing(t *testing.T) {
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var k ObjectKey
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p := participle.MustBuild(
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&ObjectKey{},
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participle.Lexer(sqlLexer),
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participle.CaseInsensitive("Keyword"),
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)
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validCases := []string{
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"['abc']",
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"['ab''c']",
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"['a''b''c']",
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"['abc-x_1##@(*&(#*))/\\']",
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}
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for i, tc := range validCases {
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err := p.ParseString(tc, &k)
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if err != nil {
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t.Fatalf("%d: %v", i, err)
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}
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if string(*k.Lit) == "" {
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t.Fatalf("Incorrect parse %#v", k)
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}
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// repr.Println(k, repr.Indent(" "), repr.OmitEmpty(true))
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}
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invalidCases := []string{
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"['abc'']",
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"['-abc'sc']",
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"[abc']",
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"['ac]",
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}
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for i, tc := range invalidCases {
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err := p.ParseString(tc, &k)
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if err == nil {
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t.Fatalf("%d: %v", i, err)
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}
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// fmt.Println(tc, err)
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}
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}
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func TestFunctionParsing(t *testing.T) {
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var fex FuncExpr
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p := participle.MustBuild(
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&FuncExpr{},
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participle.Lexer(sqlLexer),
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participle.CaseInsensitive("Keyword"),
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participle.CaseInsensitive("Timeword"),
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)
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validCases := []string{
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"count(*)",
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"sum(2 + s.id)",
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"sum(t)",
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"avg(s.id[1])",
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"coalesce(s.id[1], 2, 2 + 3)",
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"cast(s as string)",
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"cast(s AS INT)",
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"cast(s as DECIMAL)",
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"extract(YEAR from '2018-01-09')",
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"extract(month from '2018-01-09')",
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"extract(hour from '2018-01-09')",
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"extract(day from '2018-01-09')",
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"substring('abcd' from 2 for 2)",
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"substring('abcd' from 2)",
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"substring('abcd' , 2 , 2)",
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"substring('abcd' , 22 )",
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"trim(' aab ')",
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"trim(leading from ' aab ')",
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"trim(trailing from ' aab ')",
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"trim(both from ' aab ')",
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"trim(both '12' from ' aab ')",
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"trim(leading '12' from ' aab ')",
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"trim(trailing '12' from ' aab ')",
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"count(23)",
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}
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for i, tc := range validCases {
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err := p.ParseString(tc, &fex)
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if err != nil {
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t.Fatalf("%d: %v", i, err)
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}
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// repr.Println(fex, repr.Indent(" "), repr.OmitEmpty(true))
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}
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}
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func TestSqlLexer(t *testing.T) {
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// s := bytes.NewBuffer([]byte("s.['name'].*.[*].abc.[\"abc\"]"))
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s := bytes.NewBuffer([]byte("S3Object.words.*.id"))
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// s := bytes.NewBuffer([]byte("COUNT(Id)"))
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lex, err := sqlLexer.Lex(s)
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if err != nil {
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t.Fatal(err)
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}
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tokens, err := lexer.ConsumeAll(lex)
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if err != nil {
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t.Fatal(err)
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}
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// for i, t := range tokens {
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// fmt.Printf("%d: %#v\n", i, t)
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// }
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if len(tokens) != 7 {
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t.Fatalf("Expected 7 got %d", len(tokens))
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}
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}
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func TestSelectWhere(t *testing.T) {
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p := participle.MustBuild(
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&Select{},
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participle.Lexer(sqlLexer),
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participle.CaseInsensitive("Keyword"),
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)
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s := Select{}
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cases := []string{
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"select * from s3object",
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"select a, b from s3object s",
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"select a, b from s3object as s",
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"select a, b from s3object as s where a = 1",
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"select a, b from s3object s where a = 1",
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"select a, b from s3object where a = 1",
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}
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for i, tc := range cases {
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err := p.ParseString(tc, &s)
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if err != nil {
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t.Fatalf("%d: %v", i, err)
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}
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// repr.Println(s, repr.Indent(" "), repr.OmitEmpty(true))
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}
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}
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func TestLikeClause(t *testing.T) {
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p := participle.MustBuild(
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&Select{},
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participle.Lexer(sqlLexer),
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participle.CaseInsensitive("Keyword"),
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)
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s := Select{}
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cases := []string{
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`select * from s3object where Name like 'abcd'`,
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`select Name like 'abc' from s3object`,
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`select * from s3object where Name not like 'abc'`,
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`select * from s3object where Name like 'abc' escape 't'`,
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`select * from s3object where Name like 'a\%' escape '?'`,
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`select * from s3object where Name not like 'abc\' escape '?'`,
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`select * from s3object where Name like 'a\%' escape LOWER('?')`,
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`select * from s3object where Name not like LOWER('Bc\') escape '?'`,
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}
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for i, tc := range cases {
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err := p.ParseString(tc, &s)
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if err != nil {
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t.Errorf("%d: %v", i, err)
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}
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}
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}
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func TestBetweenClause(t *testing.T) {
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p := participle.MustBuild(
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&Select{},
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participle.Lexer(sqlLexer),
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participle.CaseInsensitive("Keyword"),
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)
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s := Select{}
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cases := []string{
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`select * from s3object where Id between 1 and 2`,
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`select * from s3object where Id between 1 and 2 and name = 'Ab'`,
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`select * from s3object where Id not between 1 and 2`,
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`select * from s3object where Id not between 1 and 2 and name = 'Bc'`,
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}
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for i, tc := range cases {
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err := p.ParseString(tc, &s)
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if err != nil {
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t.Errorf("%d: %v", i, err)
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}
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}
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}
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func TestFromClauseJSONPath(t *testing.T) {
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p := participle.MustBuild(
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&Select{},
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participle.Lexer(sqlLexer),
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participle.CaseInsensitive("Keyword"),
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)
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s := Select{}
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cases := []string{
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"select * from s3object",
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"select * from s3object[*].name",
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"select * from s3object[*].books[*]",
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"select * from s3object[*].books[*].name",
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"select * from s3object where name > 2",
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"select * from s3object[*].name where name > 2",
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"select * from s3object[*].books[*] where name > 2",
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"select * from s3object[*].books[*].name where name > 2",
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"select * from s3object[*].books[*] s",
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"select * from s3object[*].books[*].name as s",
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"select * from s3object s where name > 2",
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"select * from s3object[*].name as s where name > 2",
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}
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for i, tc := range cases {
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err := p.ParseString(tc, &s)
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if err != nil {
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t.Fatalf("%d: %v", i, err)
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}
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// repr.Println(s, repr.Indent(" "), repr.OmitEmpty(true))
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}
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}
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func TestSelectParsing(t *testing.T) {
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p := participle.MustBuild(
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&Select{},
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participle.Lexer(sqlLexer),
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participle.CaseInsensitive("Keyword"),
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)
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s := Select{}
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cases := []string{
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"select * from s3object where name > 2 or value > 1 or word > 2",
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"select s.word.id + 2 from s3object s",
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"select 1-2-3 from s3object s limit 1",
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}
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for i, tc := range cases {
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err := p.ParseString(tc, &s)
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if err != nil {
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t.Fatalf("%d: %v", i, err)
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}
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// repr.Println(s, repr.Indent(" "), repr.OmitEmpty(true))
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}
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}
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func TestSqlLexerArithOps(t *testing.T) {
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s := bytes.NewBuffer([]byte("year from select month hour distinct"))
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lex, err := sqlLexer.Lex(s)
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if err != nil {
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t.Fatal(err)
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}
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tokens, err := lexer.ConsumeAll(lex)
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if err != nil {
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t.Fatal(err)
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}
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if len(tokens) != 7 {
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t.Errorf("Expected 7 got %d", len(tokens))
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}
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// for i, t := range tokens {
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// fmt.Printf("%d: %#v\n", i, t)
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// }
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}
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