(ORDBMS) based on POSTGRES, Version 4.21, developed at the University of California at Berkeley Computer Science Department. POST- GRES pioneered many concepts that only became available in some commercial passages are emphasized in italics. Everything that represents in- iii Preface put or output of the computer, in particular commands, program code, and screen output, is shown in a monospaced font (example) and how they propagate through calculations is the subject of an entire branch of mathematics and computer science and will not be discussed further here, except for the following points: • If you require

(ORDBMS) based on POSTGRES, Version 4.21, developed at the University of California at Berkeley Computer Science Department. POSTGRES pioneered many concepts that only became available in some commercial important passages are emphasized in italics. Everything that represents input or output of the computer, in particular commands, program code, and screen output, is shown in a monospaced font (example) and how they propagate through calculations is the subject of an entire branch of mathematics and computer science and will not be discussed further here, except for the following points: • If you require

(ORDBMS) based on POSTGRES, Version 4.21, developed at the University of California at Berkeley Computer Science Department. POST- GRES pioneered many concepts that only became available in some commercial important passages are emphasized in italics. Everything that represents in- put or output of the computer, in particular commands, program code, and screen output, is shown in a monospaced font (example) and how they propagate through calculations is the subject of an entire branch of mathematics and computer science and will not be discussed further here, except for the following points: • If you require

(ORDBMS) based on POSTGRES, Version 4.21, developed at the University of California at Berkeley Computer Science Department. POST- GRES pioneered many concepts that only became available in some commercial important passages are emphasized in italics. Everything that represents in- put or output of the computer, in particular commands, program code, and screen output, is shown in a monospaced font (example) and how they propagate through calculations is the subject of an entire branch of mathematics and computer science and will not be discussed further here, except for the following points: • If you require

(ORDBMS) based on POSTGRES, Version 4.21, developed at the University of California at Berkeley Computer Science Department. POST- GRES pioneered many concepts that only became available in some commercial important passages are emphasized in italics. Everything that represents in- put or output of the computer, in particular commands, program code, and screen output, is shown in a monospaced font (example) and how they propagate through calculations is the subject of an entire branch of mathematics and computer science and will not be discussed further here, except for the following points: • If you require

(ORDBMS) based on POSTGRES, Version 4.21, developed at the University of California at Berkeley Computer Science Department. POST- GRES pioneered many concepts that only became available in some commercial important passages are emphasized in italics. Everything that represents in- put or output of the computer, in particular commands, program code, and screen output, is shown in a monospaced font (example) and how they propagate through calculations is the subject of an entire branch of mathematics and computer science and will not be discussed further here, except for the following points: • If you require

(ORDBMS) based on POSTGRES, Version 4.21, developed at the University of California at Berkeley Computer Science Department. POST- GRES pioneered many concepts that only became available in some commercial important passages are emphasized in italics. Everything that represents in- put or output of the computer, in particular commands, program code, and screen output, is shown in a monospaced font (example) and how they propagate through calculations is the subject of an entire branch of mathematics and computer science and will not be discussed further here, except for the following points: • If you require

(ORDBMS) based on POSTGRES, Version 4.21, developed at the University of California at Berkeley Computer Science Department. POSTGRES pioneered many concepts that only became available in some commercial passages are emphasized in italics. Everything that represents xlvi Preface input or output of the computer, in particular commands, program code, and screen output, is shown in a monospaced font (example) and how they propagate through calculations is the subject of an entire branch of mathematics and computer science and will not be discussed further here, except for the following points: • If you require

(ORDBMS) based on POSTGRES, Version 4.21, developed at the University of California at Berkeley Computer Science Department. POSTGRES pioneered many concepts that only became available in some commercial passages are emphasized in italics. Everything that represents l Preface input or output of the computer, in particular commands, program code, and screen output, is shown in a monospaced font (example) and how they propagate through calculations is the subject of an entire branch of mathematics and computer science and will not be discussed here, except for the following points: • If you require exact

(ORDBMS) based on POSTGRES, Version 4.21, developed at the University of California at Berkeley Computer Science Department. POST- GRES pioneered many concepts that only became available in some commercial important passages are emphasized in italics. Everything that represents in- put or output of the computer, in particular commands, program code, and screen output, is shown in a monospaced font (example) and how they propagate through calculations is the subject of an entire branch of mathematics and computer science and will not be discussed here, except for the following points: • If you require exact