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NULLs in Array

Recorded source states and original language descriptions. Missing version evidence stays unknown.

The source snapshot records transitions for PostgreSQL 8.1–18. The historical matrix records independent cells for 7.4–18. Neither records support for PostgreSQL 19 or 20; newer versions remain unknown. These source claims are distinct from runtime measurements.

Data Types, Functions, & Operators

Description

array elements can contain NULL

Selected version: PostgreSQL 18

Yes

20191817161514131211109.69.59.49.39.29.19.08.48.38.28.18.07.4
UnknownUnknownYesYesYesYesYesYesYesYesYesYesYesYesYesYesYesYesYesYesYesNoUnknownUnknown

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Original documentation links

Recorded legacy identifiers: 38

Complete source facts and provenance

yaml · center · 1dd22bf9a7f3ec325b894e2836fda535a25529f246a94dd41d6abbfe9997f7fd

{
  "Key": "nulls-in-array",
  "SourceKind": "yaml",
  "SourceDatabase": "center",
  "SourceTable": "featurematrix.yaml",
  "SourceKey": "NULLs in Array",
  "SourceHash": "1dd22bf9a7f3ec325b894e2836fda535a25529f246a94dd41d6abbfe9997f7fd",
  "Name": "NULLs in Array",
  "NameLocale": "en",
  "GroupKey": "data-types-functions-operators",
  "GroupName": "Data Types, Functions, \u0026 Operators",
  "GroupLocale": "en",
  "Ordinal": 6,
  "GroupOrder": 1,
  "Facts": {
    "feature": {
      "description": "array elements can contain NULL",
      "name": "NULLs in Array",
      "versions": {
        "8.2": "Yes"
      }
    },
    "group": "Data Types, Functions, \u0026 Operators",
    "versions": {
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      "min": 8.1
    }
  },
  "Cells": [
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      "Version": "10",
      "State": "yes",
      "EvidenceKind": "yaml-transition",
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      "Supported": true,
      "Original": "Yes"
    },
    {
      "Version": "11",
      "State": "yes",
      "EvidenceKind": "yaml-transition",
      "TransitionVersion": "8.2",
      "Supported": true,
      "Original": "Yes"
    },
    {
      "Version": "12",
      "State": "yes",
      "EvidenceKind": "yaml-transition",
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    },
    {
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      "State": "yes",
      "EvidenceKind": "yaml-transition",
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      "Supported": true,
      "Original": "Yes"
    },
    {
      "Version": "14",
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      "EvidenceKind": "yaml-transition",
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    },
    {
      "Version": "15",
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    },
    {
      "Version": "16",
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      "EvidenceKind": "yaml-transition",
      "TransitionVersion": "8.2",
      "Supported": true,
      "Original": "Yes"
    },
    {
      "Version": "17",
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      "EvidenceKind": "yaml-transition",
      "TransitionVersion": "8.2",
      "Supported": true,
      "Original": "Yes"
    },
    {
      "Version": "18",
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      "TransitionVersion": "8.2",
      "Supported": true,
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    },
    {
      "Version": "8.1",
      "State": "no",
      "EvidenceKind": "yaml-default-no",
      "TransitionVersion": "",
      "Supported": false,
      "Original": "No"
    },
    {
      "Version": "8.2",
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      "TransitionVersion": "8.2",
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    {
      "Version": "8.3",
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      "Supported": true,
      "Original": "Yes"
    },
    {
      "Version": "8.4",
      "State": "yes",
      "EvidenceKind": "yaml-transition",
      "TransitionVersion": "8.2",
      "Supported": true,
      "Original": "Yes"
    },
    {
      "Version": "9.0",
      "State": "yes",
      "EvidenceKind": "yaml-transition",
      "TransitionVersion": "8.2",
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      "Original": "Yes"
    },
    {
      "Version": "9.1",
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    {
      "Version": "9.2",
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    },
    {
      "Version": "9.3",
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      "EvidenceKind": "yaml-transition",
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      "Supported": true,
      "Original": "Yes"
    },
    {
      "Version": "9.4",
      "State": "yes",
      "EvidenceKind": "yaml-transition",
      "TransitionVersion": "8.2",
      "Supported": true,
      "Original": "Yes"
    },
    {
      "Version": "9.5",
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      "EvidenceKind": "yaml-transition",
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      "TransitionVersion": "8.2",
      "Supported": true,
      "Original": "Yes"
    }
  ],
  "Texts": [
    {
      "Locale": "en",
      "Title": "NULLs in Array",
      "BodyHTML": "\u003cp\u003earray elements can contain NULL\u003c/p\u003e\n",
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        "description": "array elements can contain NULL",
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        "versions": {
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        }
      }
    },
    {
      "Locale": "zh-Hans",
      "Title": "数组中的 NULL",
      "BodyHTML": "\u003cp\u003e数组元素可以包含 NULL\u003c/p\u003e\n",
      "SourceHash": "071091951021357a5f492adb04caed6febf4d315ac2626ca027a48dd8ec01d50",
      "ContentHash": "756a756253e7facaa9c9887dca8a863db75daf69e93d604b293a19d610a4248e",
      "Payload": {
        "description": "数组元素可以包含 NULL",
        "name": "数组中的 NULL"
      }
    }
  ],
  "GroupTitles": {
    "en": "Data Types, Functions, \u0026 Operators",
    "zh-Hans": "数据类型、函数和操作符"
  },
  "LegacyIDs": [
    "38"
  ]
}

Complete source data JSON