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feat(query_perf_monitoring): Implement query performance monitoring m…
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50 changes: 50 additions & 0 deletions
50
src/query-performance-monitoring/common-utils/common_helpers.go
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| Original file line number | Diff line number | Diff line change |
|---|---|---|
| @@ -0,0 +1,50 @@ | ||
| package commonutils | ||
|
|
||
| import ( | ||
| "crypto/rand" | ||
| "fmt" | ||
| "math/big" | ||
| "regexp" | ||
| "strings" | ||
| "time" | ||
|
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| "github.com/newrelic/nri-postgresql/src/collection" | ||
| ) | ||
|
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| // re is a regular expression that matches single-quoted strings, numbers, or double-quoted strings | ||
| var re = regexp.MustCompile(`'[^']*'|\d+|".*?"`) | ||
|
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| func GetQuotedStringFromArray(array []string) string { | ||
| var quotedNames = make([]string, 0) | ||
| for _, name := range array { | ||
| quotedNames = append(quotedNames, fmt.Sprintf("'%s'", name)) | ||
| } | ||
| return strings.Join(quotedNames, ",") | ||
| } | ||
|
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| func GetDatabaseListInString(dbList collection.DatabaseList) string { | ||
| var databaseNames = make([]string, 0) | ||
| for dbName := range dbList { | ||
| databaseNames = append(databaseNames, dbName) | ||
| } | ||
| if len(databaseNames) == 0 { | ||
| return "" | ||
| } | ||
| return GetQuotedStringFromArray(databaseNames) | ||
| } | ||
|
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| func AnonymizeQueryText(query string) string { | ||
| anonymizedQuery := re.ReplaceAllString(query, "?") | ||
| return anonymizedQuery | ||
| } | ||
|
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| // This function is used to generate a unique plan ID for a query | ||
| func GeneratePlanID(queryID string) *string { | ||
| randomInt, err := rand.Int(rand.Reader, big.NewInt(RandomIntRange)) | ||
| if err != nil { | ||
| return nil | ||
| } | ||
| currentTime := time.Now().Format(TimeFormat) | ||
| result := fmt.Sprintf("%s-%d-%s", queryID, randomInt.Int64(), currentTime) | ||
| return &result | ||
| } |
56 changes: 56 additions & 0 deletions
56
src/query-performance-monitoring/common-utils/common_helpers_test.go
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| Original file line number | Diff line number | Diff line change |
|---|---|---|
| @@ -0,0 +1,56 @@ | ||
| package commonutils_test | ||
|
|
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| import ( | ||
| "sort" | ||
| "testing" | ||
| "time" | ||
|
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| "github.com/newrelic/nri-postgresql/src/collection" | ||
| commonutils "github.com/newrelic/nri-postgresql/src/query-performance-monitoring/common-utils" | ||
| "github.com/stretchr/testify/assert" | ||
| ) | ||
|
|
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| func TestGetQuotedStringFromArray(t *testing.T) { | ||
| input := []string{"db1", "db2", "db3"} | ||
| expected := "'db1','db2','db3'" | ||
| result := commonutils.GetQuotedStringFromArray(input) | ||
| assert.Equal(t, expected, result) | ||
| } | ||
|
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| func TestGetDatabaseListInString(t *testing.T) { | ||
| dbListKeys := []string{"db1"} | ||
| sort.Strings(dbListKeys) // Sort the keys to ensure consistent order | ||
| dbList := collection.DatabaseList{} | ||
| for _, key := range dbListKeys { | ||
| dbList[key] = collection.SchemaList{} | ||
| } | ||
| expected := "'db1'" | ||
| result := commonutils.GetDatabaseListInString(dbList) | ||
| assert.Equal(t, expected, result) | ||
|
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| // Test with empty database list | ||
| dbList = collection.DatabaseList{} | ||
| expected = "" | ||
| result = commonutils.GetDatabaseListInString(dbList) | ||
| assert.Equal(t, expected, result) | ||
| } | ||
|
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| func TestAnonymizeQueryText(t *testing.T) { | ||
| query := "SELECT * FROM users WHERE id = 1 AND name = 'John'" | ||
| expected := "SELECT * FROM users WHERE id = ? AND name = ?" | ||
| result := commonutils.AnonymizeQueryText(query) | ||
| assert.Equal(t, expected, result) | ||
| query = "SELECT * FROM employees WHERE id = 10 OR name <> 'John Doe' OR name != 'John Doe' OR age < 30 OR age <= 30 OR salary > 50000OR salary >= 50000 OR department LIKE 'Sales%' OR department ILIKE 'sales%'OR join_date BETWEEN '2023-01-01' AND '2023-12-31' OR department IN ('HR', 'Engineering', 'Marketing') OR department IS NOT NULL OR department IS NULL;" | ||
| expected = "SELECT * FROM employees WHERE id = ? OR name <> ? OR name != ? OR age < ? OR age <= ? OR salary > ?OR salary >= ? OR department LIKE ? OR department ILIKE ?OR join_date BETWEEN ? AND ? OR department IN (?, ?, ?) OR department IS NOT NULL OR department IS NULL;" | ||
| result = commonutils.AnonymizeQueryText(query) | ||
| assert.Equal(t, expected, result) | ||
| } | ||
|
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| func TestGeneratePlanID(t *testing.T) { | ||
| queryID := "query123" | ||
| result := commonutils.GeneratePlanID(queryID) | ||
| assert.NotNil(t, result) | ||
| assert.Contains(t, *result, queryID) | ||
| assert.Contains(t, *result, "-") | ||
| assert.Contains(t, *result, time.Now().Format(commonutils.TimeFormat)[:8]) // Check date part | ||
| } |
24 changes: 24 additions & 0 deletions
24
src/query-performance-monitoring/common-utils/constants.go
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| Original file line number | Diff line number | Diff line change |
|---|---|---|
| @@ -0,0 +1,24 @@ | ||
| package commonutils | ||
|
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| import "errors" | ||
|
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| const MaxQueryThreshold = 30 | ||
| const MaxIndividualQueryThreshold = 10 | ||
| const PublishThreshold = 100 | ||
| const RandomIntRange = 1000000 | ||
| const TimeFormat = "20060102150405" | ||
| const VersionRegex = "PostgreSQL (\\d+)\\." | ||
|
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| var ErrParseVersion = errors.New("unable to parse PostgreSQL version from string") | ||
| var ErrUnsupportedVersion = errors.New("unsupported PostgreSQL version") | ||
| var ErrUnExpectedError = errors.New("unexpected error") | ||
|
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| var ErrVersionFetchError = errors.New("no rows returned from version query") | ||
| var ErrInvalidModelType = errors.New("invalid model type") | ||
| var ErrNotEligible = errors.New("not Eligible to fetch metrics") | ||
|
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| const PostgresVersion12 = 12 | ||
| const PostgresVersion11 = 11 | ||
| const PostgresVersion13 = 13 | ||
| const PostgresVersion14 = 14 | ||
| const VersionIndex = 2 |
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